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Test Bank For Modern Data Base Management 15th Edition

Modern Database Management, 13e (Hoffer) Chapter 1 T h e Database Environment and Development Process 1) According to a McKinsey Global Institute Report, in 2010 alone, global enterprises stored more than: A) 1 terabyte of data. B) 3 gigabytes of data. C) at least 100 petabytes of data. D) more than 7 billion exabytes of data. Answer: D LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 2) Database management involves all of the following EXCEPT: A) collecting data. B) organizing data. C) design web pages. D) managing data. Answer: C LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 3) A database is an organized collection of A) logically B) physically C) loosely D) badly Answer: A LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology

related data.

4) Legacy systems often contain data of A) poor; personal computers B) excellent; mainframes C) poor; mainframes D) excellent; workgroup computers Answer: C LO: 3.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology

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Test Bank For Modern Data Base Management 15th Edition

5) Program-data dependence is caused by: A) file descriptions being stored in each database application. B) data descriptions being stored on a server. C) data descriptions being written into programming code. D) data cohabiting with programs. Answer: A LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Moderate Classification: Concept AACSB: Information Technology 6) Because applications are often developed independently in file processing systems: A) the data is always non-redundant. B) unplanned duplicate data files are the rule rather than the exception. C) data can always be shared with others. D) there is a large volume of file I/O. Answer: B LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Moderate Classification: Concept AACSB: Information Technology 7) Relational databases establish the relationships between entities by means of common fields included in a file called a(n): A) entity. B) relationship. C) relation. D) association. Answer: C LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 8) A(n) is often developed by identifying a form or report that a user needs on a regular basis. A) enterprise view B) reporting document C) user view D) user snapshot Answer: C LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 2 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

9) A graphical system used to capture the nature and relationships among data is called a(n): A) XML data model. B) hypertext graphic. C) relational database. D) data model. Answer: D LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 10) Data that describe the properties of other data are: A) relationships. B) logical. C) physical. D) metadata. Answer: D LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 11) Metatdata typically describes all of the following EXCEPT: A) data definitions. B) length. C) allowable values. D) location on disk. Answer: D LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

12) A person, place, object, event, or concept about which the organization wishes to maintain data is called a(n): A) relationship. B) object. C) attribute. D) entity. Answer: D LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 13) are established between entities in a well-structured database so that the desired information can be retrieved. A) Entities B) Relationships C) Lines D) Ties Answer: B LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 14) All of the following are primary purposes of a database management system (DBMS) EXCEPT: A) creating data. B) updating data. C) storing data. D) providing an integrated development environment. Answer: D LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Difficult Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

15) With the database approach, data descriptions are stored in a central location known as a: A) server. B) mainframe. C) PC. D) repository. Answer: D LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Moderate Classification: Concept AACSB: Information Technology 16) A user view is: A) what a user sees when he or she looks out the window. B) a table or set of tables. C) a logical description of some portion of the database. D) a procedure stored on the server. Answer: C LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 17) A major difference between data warehouses and transactional systems as compared to big data is: A) the data is unstructured in big data systems. B) the size of the CPU used. C) the programming required to access data. D) all of the above. Answer: A LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Difficult Classification: Concept AACSB: Information Technology 18) Which organizational function should set database standards? A) Management B) Application development C) Technical services D) Database Administration Answer: D LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 5 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

19) is a tool even non-programmers can use to access information from a database. A) ODBC B) Structured query language C) ASP D) Data manipulation query language Answer: B LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 20) Which of the following is NOT an advantage of database systems? A) Redundant data B) Program-data independence C) Better data quality D) Reduced program maintenance Answer: A LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 21) The most common source of database failures in organizations is: A) lack of planning. B) inadequate budget. C) inadequate hardware. D) failure to implement a strong database administration function. Answer: D LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Difficult Classification: Concept AACSB: Information Technology 22) A rule that CANNOT be violated by database users is called a: A) password. B) constraint. C) program. D) view. Answer: B LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 6 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

23) In a file processing environment, descriptions for data and the logic for accessing the data are built into: A) application programs. B) database descriptors. C) fields. D) records. Answer: A LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 24) E. F. Codd developed the relational model in the: A) 1960s. B) 1970s. C) 1980s. D) 1990s. Answer: B LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 25) Which of the following is NOT an objective that drove the development and evolution of database technology? A) The need to provide greater independence between programs and data. B) The desire to manage increasing complex data types and structures. C) The desire to require programmers to write all file handling functionality. D) The need to provide ever more powerful platforms for decision support applications. Answer: C LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Difficult Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

26) The period that can be considered a "proof of concept" time was the: A) 1950s. B) 1960s. C) 1970s. D) 1990s. Answer: B LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 27) A departmental multi-tiered client/server database is stored on a central device called a: A) client. B) server. C) remote PC. D) network. Answer: B LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 28) Organizations that utilize the file processing approach spend as much as development budget on maintenance. A) 40 percent B) 25 percent C) 60 percent D) 80 percent Answer: D LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Moderate Classification: Concept AACSB: Information Technology 29) Which of the following is NOT a cost and/or risk of the database approach? A) Specialized personnel B) Cost of conversion C) Improved responsiveness D) Organizational conflict Answer: C LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Moderate Classification: Concept AACSB: Information Technology 8 Copyright © 2019 Pearson Education, Inc.

of their IS

Test Bank For Modern Data Base Management 15th Edition

30) The need for consensus on data definitions is an example of which type of risk in the database environment? A) Specialized personnel needs B) Organizational conflict C) Conversion costs D) Legacy systems Answer: B LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Moderate Classification: Concept AACSB: Information Technology 31) A knowledge base of information or facts about an enterprise is called a(n): A) enterprise information system. B) repository. C) systems information unit. D) database process. Answer: B LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Easy Classification: Concept AACSB: Information Technology 32) Which of the following is software used to create, maintain, and provide controlled access to databases? A) Network operating system B) User view C) Database management system (DBMS) D) Attribute Answer: C LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Easy Classification: Concept AACSB: Information Technology 33) A centralized knowledge base of all data definitions, data relationships, screen and report formats, and other system components is called a(n): A) index. B) data warehouse. C) repository. D) database management system. Answer: C LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Easy Classification: Concept AACSB: Information Technology 9 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

34) Languages, menus, and other facilities by which users interact with the database are collectively called a(n): A) client. B) user interface. C) icon. D) development environment. Answer: B LO: 1.7: Identify four categories of applications that use databases and their key characteristics. Difficulty: Easy Classification: Concept AACSB: Information Technology 35) Database development begins with , which establishes the range and general contents of organizational databases. A) database design B) cross-functional analysis C) departmental data modeling D) enterprise data modeling Answer: D LO: 1.7: Identify four categories of applications that use databases and their key characteristics. Difficulty: Easy Classification: Concept AACSB: Information Technology 36) The traditional methodology used to develop, maintain, and replace information systems is called the: A) Enterprise Resource Model. B) Systems Development Life Cycle. C) Unified Model. D) Systems Deployment Life Cycle. Answer: B LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

37) The SDLC phase in which every data attribute is defined, every category of data is listed, and every business relationship between data entities is defined is called the phase. A) planning B) design C) analysis D) implementation Answer: C LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology 38) The SDLC phase in which database processing programs are created is the phase. A) planning B) design C) analysis D) implementation Answer: D LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology 39) The SDLC phase in which the detailed conceptual data model is created is the phase. A) planning B) design C) analysis D) implementation Answer: C LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

40) Specifying how data from a logical schema are stored in secondary memory is part of the: A) design. B) maintenance. C) analysis. D) implementation. Answer: A LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology 41) An iterative methodology that rapidly repeats the analysis, design, and implementation phases of the SDLC is called: A) CASE. B) CAD. C) RAD. D) MST. Answer: C LO: 1.9: Explain the prototyping and agile-development approaches to database and application development. Difficulty: Easy Classification: Concept AACSB: Information Technology 42) One of the most popular RAD methods is: A) automated design. B) structured walkthrough. C) prototyping. D) crafting. Answer: C LO: 1.9: Explain the prototyping and agile-development approaches to database and application development. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

43) specify computer systems requirements. A) Programmers B) Users C) Systems analysts D) Database analysts Answer: C LO: 1.10: Explain the roles of individuals who design, implement, use, and administer databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 44) do NOT concentrate on determining the requirements for the database component of an information system. A) Database analysts B) Systems analysts C) Programmers D) End Users Answer: D LO: 1.10: Explain the roles of individuals who design, implement, use, and administer databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 45) The three-schema approach includes which of the following schemas? A) Internal B) Logical C) Cross-functional D) Dissecting Answer: A LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

46) A data warehouse derives its data from: A) on-line transactions. B) various operational data sources. C) reports. D) a data mart. Answer: B LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 47) Determining the structure of data and the relationships between data elements either right before or at the time of use of the data is called: A) tables on write. B) schema on write. C) on demand paging. D) caching. Answer: B LO: 1.5: Distinguish between operational (transactional) and informational (data warehousing and big data) data management approaches and related technologies. Difficulty: Moderate Classification: Concept AACSB: Information Technology 48) Information is processed data. Answer: TRUE LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 49) Metadata are data that describe the properties of other data. Answer: TRUE LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 50) Databases were developed as the first application of computers to data processing. Answer: FALSE LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

51) File processing systems have been replaced by database systems in most critical business applications today. Answer: TRUE LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Easy Classification: Concept AACSB: Information Technology 52) Unplanned duplicate data files are the rule rather than the exception in file processing systems. Answer: TRUE LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Easy Classification: Concept AACSB: Information Technology 53) Organizations that utilize the file processing approach spend only 20 percent of development time on maintenance. Answer: FALSE LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Easy Classification: Concept AACSB: Information Technology 54) Many of the disadvantages of file processing systems can also be limitations of databases. Answer: TRUE LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Easy Classification: Concept AACSB: Information Technology 55) With the traditional file processing approach, each application shares data files, thus enabling much data sharing. Answer: FALSE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

56) Development starts from scratch with the traditional file processing approach because new file formats, descriptions, and file access logic must be designed for each new program. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 57) A data model is a graphical system used to capture the nature and relationships among data. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 58) A well-structured database establishes the entities between relationships in order to derive the desired information. Answer: FALSE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 59) A person is an example of an entity. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 60) The data that you are interested in capturing about an entity is called an instance. Answer: FALSE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

61) A relational database establishes the relationships between entities by means of a common field. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Difficult Classification: Concept AACSB: Information Technology 62) Separation of metadata from application programs that use the data is called data independence. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 63) Data redundancy is used to establish relationships between data but is never used to improve database performance. Answer: FALSE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Difficult Classification: Concept AACSB: Information Technology 64) Redundancy increases the risk of inconsistent data. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 65) A user view is how the user sees the data when it is produced. Answer: FALSE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

66) One reason for improved application development productivity with the database approach is that file design and low-level implementation details do not need to be handled by the application programmer. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 67) The data repository assists database administrators in enforcing standards. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 68) The failure to implement a strong database administrative function is the most common source of database failures in organizations. Answer: TRUE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Concept AACSB: Information Technology 69) A constraint is a rule in a database system that can be violated by users. Answer: FALSE LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Easy Classification: Concept AACSB: Information Technology 70) Reduced program maintenance is an advantage of file processing systems. Answer: FALSE LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

71) Cost and complexity are just two of the disadvantages of database processing. Answer: TRUE LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Moderate Classification: Concept AACSB: Information Technology 72) The term legacy system refers to a newly installed database management system. Answer: FALSE LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Moderate Classification: Concept AACSB: Information Technology 73) A modern database management system automates more of the backup and recovery tasks than a file system. Answer: TRUE LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Easy Classification: Concept AACSB: Information Technology 74) Organizational commitment to a database project is not necessary for its success. Answer: FALSE LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Moderate Classification: Concept AACSB: Information Technology 75) Data management technologies are also increasing often used as information systems, as a foundation for analytics or the systematic analysis of data to understand a real-world problem better. Answer: TRUE LO: 1.5: Distinguish between operational (transactional) and informational (data warehousing and big data) data management approaches and related technologies. Difficulty: Easy Classification: Concept AACSB: Information Technology 76) Repositories are always used in file processing systems. Answer: FALSE LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

77) The user interface includes languages, menus, and other facilities by which users interact with various system components. Answer: TRUE LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Moderate Classification: Concept AACSB: Information Technology 78) Personal databases are designed to support a small group of individuals working together on a project. Answer: FALSE LO: 1.7: Identify four categories of applications that use databases and their key characteristics. Difficulty: Easy Classification: Concept AACSB: Information Technology 79) Database development begins with the design of the database. Answer: FALSE LO: 1.7: Identify four categories of applications that use databases and their key characteristics. Difficulty: Easy Classification: Concept AACSB: Information Technology 80) An enterprise data model describes the scope of data for only one information system. Answer: FALSE LO: 1.7: Identify four categories of applications that use databases and their key characteristics. Difficulty: Easy Classification: Concept AACSB: Information Technology 81) Database development projects are never done in a bottom-up fashion. Answer: FALSE LO: 1.7: Identify four categories of applications that use databases and their key characteristics. Difficulty: Moderate Classification: Concept AACSB: Information Technology 82) The systems development life cycle is the traditional methodology used to develop, maintain, and replace information systems. Answer: TRUE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

83) The steps of the systems development life cycle can only be viewed as a linear process. Answer: FALSE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology 84) Enterprise modeling sets the range and general contents of organizational databases. Answer: TRUE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology 85) All projects move from the planning-enterprise modeling step to the planning-conceptual data modeling step of the systems development life cycle. Answer: FALSE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology 86) The repository is populated during the analysis phase of the systems development life cycle. Answer: TRUE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology 87) The physical structure and storage organization of the database is decided upon during the implementation phase of the systems development life cycle. Answer: FALSE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

88) Database processing programs are coded and tested during the design stage of the systems development life cycle. Answer: FALSE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology 89) Data from prior systems is converted to the new system during the implementation phase of the systems development life cycle. Answer: TRUE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology 90) Database maintenance is typically the longest step of the database development process. Answer: TRUE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Easy Classification: Concept AACSB: Information Technology 91) Characteristics of the structure of the database are generally changed during the implementation phase of the database development process. Answer: FALSE LO: 1.8: Describe the life cycle of a systems development project, with an emphasis on the purpose of database analysis, design, and implementation activities. Difficulty: Moderate Classification: Concept AACSB: Information Technology 92) Prototyping is a type of rapid application development. Answer: TRUE LO: 1.9: Explain the prototyping and agile-development approaches to database and application development. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

93) In prototyping, implementation and maintenance activities are repeated as necessary until the product is correct. Answer: TRUE LO: 1.9: Explain the prototyping and agile-development approaches to database and application development. Difficulty: Moderate Classification: Concept AACSB: Information Technology 94) Visual programming tools such as Visual Basic have made prototyping more difficult. Answer: FALSE LO: 1.10: Explain the roles of individuals who design, implement, use, and administer databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 95) Systems analysts work directly with both management and users to analyze the business situation and develop detailed project specifications. Answer: FALSE LO: 1.10: Explain the roles of individuals who design, implement, use, and administer databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 96) Database architects establish standards for data in business units. Answer: TRUE LO: 1.10: Explain the roles of individuals who design, implement, use, and administer databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 97) In 1998, ANSI/SPARC published an import document describing the three-schema architecture. Answer: FALSE LO: 1.12: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

98) The conceptual schema is always technology specific. Answer: FALSE LO: 1.12: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 99) The external schema contains a subset of the conceptual schema relevant to a particular group of users. Answer: FALSE LO: 1.12: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 100) A physical schema contains the specifications for how data from a conceptual schema are stored in a computer's secondary memory. Answer: TRUE LO: 1.12: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 101) The internal schema consists of the physical schema and the enterprise data model. Answer: FALSE LO: 1.12: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 102) E. F. Codd developed the relational data model during the 1970s. Answer: TRUE LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 103) The relational data model is no longer popular in the 21st century. Answer: FALSE LO: 1.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 24 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

104) Although personal databases improve productivity, one risk is that data cannot be shared with other users. Answer: TRUE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 105) The most common way to support a group of individuals who work together on a project or group of similar projects is with a multi-tier client/server database. Answer: TRUE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 106) In multi-tier database architectures, little functionality needs to be programmed into the client application. Answer: FALSE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 107) Multi-tier client/server database applications contain a business logic layer. Answer: TRUE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology 108) An enterprise resource planning system integrates all functions of the enterprise. Answer: TRUE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

109) A data warehouse contains summarized and historical information. Answer: TRUE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 110) An extranet uses Internet protocols to establish limited access to company data by the company's customers and suppliers. Answer: TRUE LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Easy Classification: Concept AACSB: Information Technology 111) Discuss the differences between data and information. Answer: Data consists of raw facts, such as figures, strings, images, etc. Most of the time, data itself is not very meaningful until we add some additional information, such as descriptive fields as well as some structure. For example, if one were looking at set of student grades with just course numbers and a semester key, this might not be very useful. If we were to add in some additional information, such as course title, semester and year, then we would have information. LO: 1.1: Define key terms. Difficulty: Easy Classification: Synthesis AACSB: Reflective Thinking 112) Discuss some of the disadvantages of file processing systems. Answer: File processing systems have several disadvantages, including: 1. Program-data dependence–The program is tied to the underlying data. Whenever the data changes, (in the sense of structurally), then the program must be modified. 2. Duplication of data–Applications are often developed separately, resulting in duplicate data. 3. Limited data sharing–This is closely related to disadvantage 2, since often applications are developed in a silo. So, for example, the accounting department might develop an application which uses some of the same data as another department. However, there is no data sharing, so two sets of data are maintained. 4. Excessive program maintenance and lengthy development times–Since the programmer has to write all of the low-level file I/O for the application, this adds to the complexity of the application. Also, since the program might need maintenance whenever there is a change to the attributes of the data, there is a need for a lot of program maintenance. LO: 1.2: Name several limitations of conventional file processing systems. Difficulty: Easy Classification: Synthesis AACSB: Reflective Thinking

Test Bank For Modern Data Base Management 15th Edition

113) Discuss some of the advantages to the database approach. Answer: The database approach has several advantages including: 1. Program-data independence–Since the metadata is stored in a repository, the underlying data can change and evolve without the need for maintenance to the applications. 2. Improved data consistency–Since there is less redundant data, the data is much more consistent. 3. Improved data sharing–A database can be created once, and then several different applications for organization units can access the underlying tables. 4. Increased application development productivity–Increased productivity since database management systems contain tools for development which aid in productivity. In addition, the developer does not have to worry about writing low-level file I/O. 5. Improved data quality–Data quality improves because of integrity constraints and range controls that can be built into the database. LO: 1.3: Explain at least 10 advantages of the database approach, compared to traditional file processing. Difficulty: Moderate Classification: Synthesis AACSB: Reflective Thinking 114) Discuss some of the costs associated with the database approach. Answer: The database approach does not come without additional costs. These are specifically tied to the following: 1. New specialized personnel 2. Cost of installation and management 3. Conversion costs 4. Need for explicit backup and recovery LO: 1.4: Identify several costs and risks of the database approach. Difficulty: Moderate Classification: Synthesis AACSB: Reflective Thinking 115) Provide a brief overview of the various components of the database environment. Answer: Components of the database environment include: CASE tools, a repository, the database management system, the database itself, application programs and the user interface. In addition, there are people such as the end users, system developers, data and database administrators. All of this is an integrated environment which improves the productivity of the organization. LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Moderate Classification: Synthesis AACSB: Reflective Thinking

Test Bank For Modern Data Base Management 15th Edition

116) Discuss why alternative IS development approaches have evolved, and provide an overview of a couple of these methodologies. Answer: The SDLC is often criticized for being too long from the time of system start until a finished product is delivered. As such, organizations have begun to adopt rapid application development techniques. One technique is prototyping, where a system is designed as a prototype, given to the user for testing and then corrected as needed. This is an iterative process. Another methodology is Agile software development, which focuses more on people than processes. LO: 1.6: List and briefly describe nine components of a typical database environment. Difficulty: Moderate Classification: Synthesis AACSB: Analytical Thinking 117) Discuss who is involved in the database development process. Answer: There are many different types of individuals involved in the database development process. First there are the users, next the business analysts who work with the users to develop business specifications. Systems analysts turn the specifications into technical specifications. Database analysts and modelers develop the actual database design. Programmers write the application. Project managers manage the entire project from start to finish. LO: 1.10: Explain the roles of individuals who design, implement, use, and administer databases. Difficulty: Moderate Classification: Synthesis AACSB: Reflective Thinking 118) Discuss Enterprise Resource Planning Systems, and contrast these to data warehouses. Answer: An ERP system integrates all functions of the enterprise. ERP systems provide the data necessary for an organization to manage all of its data. While ERP systems rely on operational data, data warehouses are designed to use summarized, historical data and are used more in the role of decision support. LO: 1.11: Explain the differences among external, conceptual, and internal schemas and the reasons for the three-schema architecture for databases. Difficulty: Moderate Classification: Synthesis AACSB: Analytical Thinking 119) Discuss big data and data warehousing. How is it different from operational systems? Answer: Data warehousing systems use static data and are used for reporting and some analytics. A data warehouse is implemented using the same technology as relational database management systems. Big data, on the other hand, can use a variety of data, both structured and unstructured. Often, big data uses a schema on read mode, where the database is built just before or while it is being used. LO: 1.5: Distinguish between operational (transactional) and informational (data warehousing and big data) data management approaches and related technologies. Difficulty: Moderate Classification: Synthesis AACSB: Analytical Thinking 28 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

Modern Database Management, 13e (Hoffer) Chapter 2 Modeling Data in the Organization 1) The logical representation of an organization's data is called a(n): A) database model. B) entity-relationship model. C) relationship systems design. D) database entity diagram. Answer: B LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 2) A good data definition will describe all of the characteristics of a data object EXCEPT: A) subtleties. B) examples. C) who determines the value of the data. D) who can delete the data. Answer: D LO: 2.1: Define key terms. Difficulty: Difficult Classification: Concept AACSB: Information Technology 3) A fact is an association between two or more: A) words. B) terms. C) facts. D) nuggets. Answer: B LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

4) Data modeling may be the most important part of the systems development process because: A) data characteristics are important in the design of programs and other systems components. B) the data in a system are generally less complex than processes and play a central role in development. C) data are less stable than processes. D) it is the easiest. Answer: A LO: 2.2: State reasons why many system developers and business leaders believe that data modeling is the most important part of the systems development process with a high return on investment. Difficulty: Easy Classification: Concept AACSB: Information Technology 5) The most common types of entities are: A) strong entities. B) weak entities. C) associative entities. D) smush entities. Answer: A LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 6) In an E-R diagram, there are/is business rule(s) for every relationship. A) two B) three C) one D) zero Answer: A LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 7) Business policies and rules govern all of the following EXCEPT: A) managing employees. B) creating data. C) updating data. D) removing data. Answer: A LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 2 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

8) A defines or constrains some aspect of the business. A) business constraint B) business structure C) business control D) business rule Answer: D LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 9) Which of the following is NOT a characteristic of a good business rule? A) Declarative B) Atomic C) Inconsistent D) Expressible Answer: C LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 10) Which of the following is NOT a good characteristic of a data name? A) Relates to business characteristics B) Readable C) Repeatable D) Relates to a technical characteristic of the system Answer: D LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 11) Customers, cars, and parts are examples of: A) entities. B) attributes. C) cardinals. D) relationships. Answer: A LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

12) Which of the following is an entity that exists independently of other entity types? A) Codependent B) Weak C) Strong D) Variant Answer: C LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 13) An entity type whose existence depends on another entity type is called a A) strong B) weak C) codependent D) variant Answer: B LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 14) The following figure shows an example of:

A) a one-to-many relationship. B) a strong entity and its associated weak entity. C) a co-dependent relationship. D) a double-walled relationship. Answer: B LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge

entity.

Test Bank For Modern Data Base Management 15th Edition

15) A(n) is the relationship between a weak entity type and its owner. A) member chain B) identifying relationship C) jump path D) chain link Answer: B LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 16) An entity type name should be all of the following EXCEPT: A) concise. B) specific to the organization. C) as short as possible. D) a singular noun. Answer: C LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 17) A property or characteristic of an entity type that is of interest to the organization is called a(n): A) attribute. B) coexisting entity. C) relationship. D) cross-function. Answer: A LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology 18) An attribute that must be present for every entity (or relationship) instance is a(n): A) composite attribute. B) required attribute. C) optional attribute. D) multivalued attribute. Answer: B LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

19) A person's name, birthday, and social security number are all examples of: A) attributes. B) entities. C) relationships. D) descriptors. Answer: A LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 20) An attribute of an entity that is computed is a(n): A) optional attribute. B) composite attribute. C) derived attribute. D) fuzzy attribute. Answer: C LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 21) An attribute that can be broken down into smaller parts is called a(n) attribute. A) associative B) simple C) composite D) complex Answer: C LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology 22) The number of entity types that participate in a Unary relationship is: A) zero. B) one. C) two. D) three. Answer: B LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

23) The number of entity types that participate in a relationship is called the: A) number. B) identifying characteristic. C) degree. D) counter. Answer: C LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Easy Classification: Concept AACSB: Information Technology 24) A relationship between the instances of a single entity type is called a relationship. A) ternary B) primary C) binary D) unary Answer: D LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

25) In the following diagram, what type of relationship is depicted?

A) Unary B) Binary C) Ternary D) Quad Answer: C LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge

Test Bank For Modern Data Base Management 15th Edition

26) In the following diagram, which is true?

A) It depicts a ternary relationship. B) It depicts a many-to-many relationship. C) Item represents a column. D) BOM_STRUCTURE represents a row. Answer: B LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Difficult Classification: Application AACSB: Information Technology, Application of Knowledge 27) A simultaneous relationship among the instances of three entity types is called a relationship. A) ternary B) tertiary C) primary D) binary Answer: A LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

28) The following figure shows an example of:

A) a composite attribute. B) a relational attribute. C) a derived attribute. D) a multivalued attribute. Answer: A LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge

Test Bank For Modern Data Base Management 15th Edition

29) In the figure below, which attribute is multivalued?

A) Years_Employed B) Employee_ID C) Skill D) Address Answer: C LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge

Test Bank For Modern Data Base Management 15th Edition

30) In the figure below, which attribute is derived?

A) Years_Employed B) Employee_ID C) Skill D) Address Answer: A LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge 31) An attribute that can be calculated from related attribute values is called a attribute. A) simple B) composite C) multivalued D) derived Answer: D LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

32) The total quiz points for a student for an entire semester is a(n) attribute. A) derived B) mixed C) stored D) addressed Answer: A LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Easy Classification: Concept AACSB: Information Technology 33) Which of the following criteria should be considered when selecting an identifier? A) Choose an identifier that is not stable. B) Choose a null identifier. C) Choose an identifier that doesn't have large composite attributes. D) Choose the most complex identifier possible. Answer: C LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Easy Classification: Concept AACSB: Information Technology 34) An attribute that uniquely identifies an entity and consists of a composite attribute is called a(n): A) composite attribute. B) composite identifier. C) identifying attribute. D) relationship identifier. Answer: B LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

35) An entity that associates the instances of one or more entity types and contains attributes peculiar to the relationships is called a(n): A) associative entity. B) build entity. C) gateway entity. D) smush entity. Answer: A LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Easy Classification: Concept AACSB: Information Technology 36) A specifies the number of instances of one entity that can be associated with each instance of another entity. A) degree B) cardinality constraint C) counter constraint D) limit Answer: B LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Easy Classification: Concept AACSB: Information Technology 37) A relationship where the minimum and maximum cardinality are both one is a(n) relationship. A) optional B) unidirectional C) mandatory link D) mandatory one Answer: D LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

38) A mutually exclusive relationship is one in which: A) an entity instance can participate in many different relationships. B) an entity instance can participate in only one of several alternative relationships. C) an entity instance cannot participate in a relationship with another entity instance. D) an entity instance bridges other XML documents. Answer: B LO: 2.5: Model each of the following constructs in an E-R diagram: composite attribute, multivalued attribute, derived attribute, associative entity, identifying relationship, and minimum and maximum cardinality constraints. Difficulty: Difficult Classification: Concept AACSB: Information Technology 39) In the figure shown below, which of the following is true?

A) A person can marry at most one person. B) A person has to be married. C) A person can marry more than one person, but that person can only be married to one person. D) A person can marry more than one person. Answer: A LO: 2.6: Draw an E-R diagram to represent common business situations. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge

Test Bank For Modern Data Base Management 15th Edition

40) For the relationship represented in the figure below, which of the following is true?

A) An employee can work in more than one department but does not have to work for any department. B) A department must have at least one employee. C) A department can have more than one employee. D) An employee has to work for more than one department. Answer: C LO: 2.6: Draw an E-R diagram to represent common business situations. Difficulty: Difficult Classification: Application AACSB: Information Technology, Application of Knowledge 41) In the following diagram, which of the answers below is true?

A) Each patient has one or more patient histories. B) Each patient has one and only one visit. C) Each patient history belongs to zero and one patient. D) Each patient history belongs to many patients. Answer: A LO: 2.6: Draw an E-R diagram to represent common business situations. Difficulty: Moderate Classification: Application AACSB: Information Technology, Application of Knowledge

Test Bank For Modern Data Base Management 15th Edition

42) In the figure shown below, which of the following business rules would apply?

A) Each vendor can supply many parts to any number of warehouses, but need not supply any parts. B) Each part must be supplied by exactly one vendor to any number of warehouses. C) Each warehouse can be supplied with any number of parts from more than one vendor, and each warehouse could be supplied with no parts. D) VENDOR is not allowed. Answer: A LO: 2.6: Draw an E-R diagram to represent common business situations. Difficulty: Difficult Classification: Application AACSB: Information Technology, Application of Knowledge 43) In the following diagram, which answer is true?

A) Each employee can supervise one employee, no employees, or many employees. B) Each employee can manage many departments. C) Each employee works in more than one department. D) Each employee was fired. Answer: A LO: 2.6: Draw an E-R diagram to represent common business situations. Difficulty: Difficult Classification: Application AACSB: Information Technology, Application of Knowledge 17 Copyright © 2019 Pearson Education, Inc.

Test Bank For Modern Data Base Management 15th Edition

44) A student can attend five classes, each with a different professor. Each professor has 30 students. The relationship of students to professors is a relationship. A) one-to-one B) many-to-many C) one-to-many D) strong Answer: B LO: 2.7: Convert a many-to-many relationship to an associative entity type. Difficulty: Difficult Classification: Concept AACSB: Information Technology 45) A value that indicates the date or time of a data value is called a: A) value stamp. B) time stamp. C) checkpoint. D) check counter. Answer: B LO: 2.8: Model simple time-dependent data using time stamps and relationships in an E-R diagram. Difficulty: Moderate Classification: Concept AACSB: Information Technology 46) The E-R model is used to construct a conceptual model. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology 47) A business rule is a statement that defines or constrains some aspect of the business. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 48) One of the roles of a database analyst is to identify and understand rules that govern data. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

49) The intent of a business rule is to break down business structure. Answer: FALSE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 50) Enforcement of business rules can be automated through the use of software that can interpret the rules and enforce them. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology 51) A business rule is a statement of how a policy is enforced or conducted. Answer: FALSE LO: 2.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology 52) While business rules are not redundant, a business rule can refer to another business rule. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology 53) A business rule should be internally consistent. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 54) Business rules are formulated from a collection of business ramblings. Answer: FALSE LO: 2.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

55) Data names should always relate to business characteristics. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 56) An example of a term would be the following sentence: "A student registers for a course." Answer: FALSE LO: 2.1: Define key terms. Difficulty: Difficult Classification: Concept AACSB: Information Technology 57) A fact is an association between two or more terms. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 58) A good data definition is always accompanied by diagrams, such as the entity-relationship diagram. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 59) An entity is a person, place, object, event, or concept in the user environment about which the organization wishes to maintain data. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 60) A single occurrence of an entity type is called an entity instance. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

61) In the figure below, Name would be an ideal identifier.

Answer: FALSE LO: 2.1: Define key terms. Difficulty: Difficult Classification: Application AACSB: Information Technology, Application of Knowledge 62) When choosing an identifier, choose one that will not change its value often. Answer: TRUE LO: 2.1: Define key terms. Difficulty: Easy Classification: Concept AACSB: Information Technology 63) Most systems developers believe that data modeling is the least important part of the systems development process. Answer: FALSE LO: 2.2: State reasons why many system developers and business leaders believe that data modeling is the most important part of the systems development process with a high return on investment. Difficulty: Moderate Classification: Concept AACSB: Information Technology 64) Data, rather than processes, are the most complex aspects of many modern information systems. Answer: TRUE LO: 2.2: State reasons why many system developers and business leaders believe that data modeling is the most important part of the systems development process with a high return on investment. Difficulty: Moderate Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

65) Data modeling is about documenting rules and policies of an organization that govern data. Answer: TRUE LO: 2.2: State reasons why many system developers and business leaders believe that data modeling is the most important part of the systems development process with a high return on investment. Difficulty: Moderate Classification: Concept AACSB: Information Technology 66) The purpose of data modeling is to document business rules about processes. Answer: FALSE LO: 2.2: State reasons why many system developers and business leaders believe that data modeling is the most important part of the systems development process with a high return on investment. Difficulty: Moderate Classification: Concept AACSB: Information Technology 67) In an E-R diagram, strong entities are represented by double-walled rectangles. Answer: FALSE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 68) In an E-R diagram, an associative entity is represented by a rounded rectangle. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 69) Data names do not have to be unique. Answer: FALSE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 70) The relationship between a weak entity type and its owner is an identifying relationship. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

71) An entity type on which a strong entity is dependent is called a covariant entity. Answer: FALSE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 72) An entity type name should always be a singular noun. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology 73) The name used for an entity type should never be the same in other E-R diagrams on which the entity appears. Answer: FALSE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 74) Some examples of attributes are: eye_color, weight, student_id, STUDENT. Answer: FALSE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 75) A simple attribute can be broken down into smaller pieces. Answer: FALSE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 76) An attribute whose values can be calculated from related attribute values is called a derived attribute. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology

Test Bank For Modern Data Base Management 15th Edition

77) A multivalued attribute may take on more than one value for a particular entity instance. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Easy Classification: Concept AACSB: Information Technology 78) Relationships represent action being taken using a verb phrase. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 79) Participation in a relationship may be optional or mandatory. Answer: TRUE LO: 2.3: Write good names and definitions for entities, relationships, and attributes. Difficulty: Moderate Classification: Concept AACSB: Information Technology 80) A ternary relationship is equivalent to three binary relationships. Answer: FALSE LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Moderate Classification: Concept AACSB: Information Technology 81) The degree of a relationship is the number of attributes that are associated with it. Answer: FALSE LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Easy Classification: Concept AACSB: Information Technology 82) The relationship between the instances of two entity types is called a binary relationship. Answer: TRUE LO: 2.4: Distinguish unary, binary, and ternary relationships and give a common example of each. Difficulty: Easy Classification: Concept AACSB: Information Technology