Introduction to Information Systems
Exam Answer Key
Course Introduction
Introduction to Information Systems offers students a foundational understanding of how information systems support business operations, decision-making, and competitive strategies in contemporary organizations. The course covers key concepts such as information system components, types and roles of information systems, data management, networks, security and ethical issues, and the impact of emerging technologies. Through case studies and real-world examples, students explore the integration of people, processes, and technology to solve business challenges and gain an appreciation for the strategic importance of information systems in various sectors.
Recommended Textbook
Database Concepts 8th Edition by David M. Kroenke
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1259 Verified Questions
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Page 2
Chapter 1: Getting Started
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Sample Questions
Q1) One problem with storing duplicated data is the potential for inconsistent values.
A)True
B)False
Answer: True
Q2) What are "referential integrity constraints"? Give an example.
Answer: A referential integrity constraint is a rule that restricts certain actions on the database data.A referential integrity constraint is used to ensure that the values in a field in one table have matching values in a corresponding field in another table.These constraints are enforced by the DBMS,which will not allow changes to the values of the database that would result in violations of this rule.For example,a database has an EMPLOYEE table and a VEHICLE table that are used to store data on employees and the vehicles that they are assigned to drive.The EMPLOYEE table has a column called EmployeeID that is used to distinguish one employee record from another.The VEHICLE table also has an EmployeeID column that is used to associate a vehicle with the appropriate employee.A referential integrity constraint could be used to prevent a vehicle from being assigned to an employee with an EmployeeID that does not appear in the EMPLOYEE table by requiring that all values in EmployeeID in the VEHICLE table have a matching value in EmployeeID in the EMPLOYEE table.
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Page 3
Chapter 2: The Relational Model
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Sample Questions
Q1) Explain the terms relation,tuple,and attribute.
Answer: The terms relation,tuple,and attribute are used primarily by database theoreticians.These terms are synonymous with the terms table,row,and column,respectively,in regards to a relational database.They are also equivalent to the terms file,record,and field,which tend to be used by many traditional data processing professionals.
Q2) Null values can cause problems because they are ambiguous. A)True
B)False
Answer: True
Q3) In Microsoft Access,relationships between tables are created ________.
A) by the Relationships button on the Create command tab
B) by the Relationships button on the Home command tab
C) in the Relationships window
D) in the Table window of the table containing the primary key
E) in the Table window of the table containing the foreign key
Answer: C
Q4) Any table that meets the requirements of a(n)________ is in first normal form. Answer: relation
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Chapter 3: Structured Query Language
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Sample Questions
Q1) Table and relationship properties not supported by Microsoft Access SQL can usually be set ________ in the appropriate window or dialog box.
Answer: manually
Q2) Which symbol is used in standard SQL as a wildcard to represent a series of one or more unspecified characters?
A) percent sign %
B) exclamation mark !
C) underscore _
D) question mark ?
E) semi-colon ;
Answer: A
Q3) If you need to create a primary key that is a composite key using SQL,the key may be defined when the table is created using the CREATE TABLE statement.
A)True
B)False
Answer: True
Q4) SQL is not a complete programming language,but is rather a(n)________.
Answer: data sublanguage
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Chapter 4: Data Modeling and the Entity Relationship Model
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Sample Questions
Q1) There is usually only one instance of an entity in an entity class.
A)True
B)False
Q2) Unified Modeling Language (UML)has quickly replaced the E-R Model as the most popular technique for creating data models.
A)True
B)False
Q3) How is minimum cardinality expressed in crow's foot E-R diagrams?
Q4) An entity identifier can be either unique or nonunique.
A)True
B)False
Q5) Recursive relationships can be represented as 1:N or N:M,but not 1:1.
A)True
B)False
Q6) A dashed line between entities indicates ________.
A) a unique identifier
B) a minimum cardinality of zero
C) a minimum cardinality of one
D) an identifying relationship
E) a nonidentifying relationship
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Chapter 5: Database Design
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Q1) What is denormalization and why can it be desirable?
Q2) A(n)________ is a relationship among entities of the same class.
Q3) After a 1:1 relationship has been created between two tables in Microsoft Access,the Relationship Type of One-To-One appears in the ________.
Q4) Explain the representation of a many-to-many strong entity relationship in a relational database design.
Q5) In many-to-many relationships in a relational database design,________.
A) the key of the child is placed as a foreign key into the parent
B) the key of the parent is placed as a foreign key into the child
C) the keys of both tables are placed in a third table
D) the keys of both tables are joined into a composite key
E) Both C and D
Q6) In many-to-many relationships in a relational database design,________.
A) the intersection table is ID-dependent on one of the parents
B) the intersection table is ID-dependent on both of the parents
C) the minimum cardinality from the intersection table to the parents is always M
D) Both A and B
E) Both B and C
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Chapter 6: Database Administration
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Sample Questions
Q1) Preventing multiple applications from obtaining copies of the same record when the record is about to be changed is called ________.
A) serialized reading
B) lost updating
C) concurrent processing
D) resource locking
E) block factoring
Q2) A dirty read is a problem with concurrent processing when a transaction rereads data it has already read and finds modifications or deletions caused by another transaction.
A)True
B)False
Q3) Discuss Microsoft Access 2016 security administration.
Q4) The recovery method in which we undo the changes that erroneous or partially processed transactions have made in the database is called ________ recovery.
Q5) Database administrators must make sure that ________ measures are in place and enforced so that only authorized users can take authorized actions at appropriate times.
Q6) What is the difference between authentication and authorization?
Page 8
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Chapter 7: Database Processing Applications
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Q1) With ODBC,a database and the DBMS that processes it are identified by the data source.
A)True
B)False
Q2) NetBeans is a(n)________.
Q3) XML stands for ________.
Q4) Which of the following is true about stored procedures?
A) Stored procedures cannot be passed parameters like a regular application function.
B) Stored procedures are stored as an embedded function in the application program.
C) Stored procedures are stored in the database.
D) Stored procedures are invoked automatically by the DBMS when specific events occur.
E) Stored procedures are always written in PHP.
Q5) What are the common differences between a Web database processing system running on the Windows operating system and one running on a Linux operating system?
Q6) When using Microsoft Access and IIS with an ODBC data source,the ODBC data source should be a(n)________.
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Chapter 8: Data Warehouses,Business Intelligence
Systems,and Big Data
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Sample Questions
Q1) To deal with data values that change over time,dimensional databases use a(n)________.
Q2) Dimensional databases are used for analytical data processing. A)True
B)False
Q3) Business Intelligence (BI)systems obtain data from three possible sources.
A)True
B)False
Q4) Business Intelligence (BI)reporting systems can analyze data using standard SQL. A)True B)False
Q5) Column family databases are indistinguishable from relational database tables. A)True B)False
Q6) Business Intelligence (BI)reporting systems are used to filter data,sort data,group data and make simple calculations based on the data. A)True
B)False
Q8) Hadoop is a(n)________. Page 10
Q7) To deal with historical data values,dimensional databases use a(n)________.
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Chapter
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Sample Questions
Q1) SQL statements can be run individually or as part of a related group of SQL statements known as a script.
A)True
B)False
Q2) SQL statements can be run individually or as part of a related group of SQL statements known as a(n)________.
Q3) To create a new SQL query,click the New Query button.
A)True
B)False
Q4) To create a new SQL query,click the ________ button.
Q5) To run an SQL script,click the Execute button on the Query Toolbar.
A)True
B)False
Q6) SQL Server 2016 uses DBMS authentication by default.
A)True
B)False
Q7) An important reason for using SQL Server 2016 Express is that it has full SQL capabilities.
A)True
B)False Page 12
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Chapter 10: Learn how to create a database in Oracle
Database XE 11g Release 2
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Sample Questions
Q1) SQL query results are displayed ________.
A) in a tabbed Resultset window
B) in a tabbed Query Result window
C) in a tabbed Document window
D) in a tabbed Messages window
E) in a tabbed Finished window
Q2) With Oracle Database,data must be entered using SQL INSERT statements.
A)True
B)False
Q3) When Oracle Database XE is installed,the Oracle Database ODBC client is
A) installed automatically as part of the installation
B) installed manually as a separate part of the installation process
C) not installed and must be downloaded and installed manually
D) not installed because there is no ODBC client for Oracle Database 11g Release 2
Express Edition
E) Either A or B
Q4) There are four editions of Oracle Database 12c.
A)True
B)False
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Chapter 11: Learn how to create a database in MySQL 57
Community Server Edition
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Sample Questions
Q1) In the MySQL Workbench,a 1:N non-identifying relationship between two tables that already contain the needed primary and foreign keys is created using the Place a Relationship Using Existing Columns button.
A)True
B)False
Q2) Describe the MySQL Connector/ODBC and how to install it.
Q3) Logging into the MySQL Community Server 5.7 DBMS is done using ________.
A) the Connect to Server command
B) the Connect to Server dialog box
C) the Connect to MySQL Server command
D) the Connect to MySQL Server dialog box
E) None of the above is correct
Q4) Database objects are displayed in the Object Browser window in the MySQL Workbench.
A)True B)False
Q5) SQL statements can be run individually or as part of a related group of SQL statements known as a(n)________.
Q6) Describe how to add a table object to a MySQL Workbench database design.
Q7) Users log into MySQL 5.7 Community Server Edition using the ________ dialog box. Page 15
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Chapter 12: Introduce the topic of importing Microsoft Excel
2016 data into a database table
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Sample Questions
Q1) SQL views contain their own data.
A)True
B)False
Q2) SQL views are constructed from SELECT statements.
A)True
B)False
Q3) SQL triggers are used for providing default values,validity checking,updating views,and performing referential integrity actions.
A)True
B)False
Q4) SQL views are used for all except ________.
A) to backup preexisting tables
B) to display the results of computations
C) to hide complicated SQL syntax
D) to layer built-in functions
E) to hide columns or rows
Q5) What are SQL stored procedures and how are they used?
B)False Page 17
Q6) The SQL UNION operator is supported by all DBMS products. A)True
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Q1) This appendix provides an in-depth,thorough look at systems analysis and design from the standpoint of a database course.
A)True
B)False
Q2) A business process is a set of activities that transforms materials into products.
A)True
B)False
Q3) User interviews are conducted during the requirements analysis step.
A)True
B)False
Q4) User interviews are conducted during the ________ step of the SDLC.
A) system definition
B) requirements analysis
C) component design
D) implementation
E) systems maintenance
Q5) A computer-based information system has ________ components.
Q6) ________ are constraints on database activities which generally arise from business policy and practice.
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Chapter 14: Learn how to create E-R data models in Microsoft Visio 2016
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Sample Questions
Q1) In Microsoft Visio 2016,clicking the File command tab opens the Backstage view.
A)True
B)False
Q2) In Microsoft Visio 2016,the Crow's Foot Database Notation stencil objects include
A) an Entity object
B) a Relationship object
C) a Dynamic connector object
D) Both A and B
E) A, B, and C
Q3) In Microsoft Visio 2016,the arrow end of the Dynamic connector object points to the table containing the primary key.
A)True
B)False
Q4) When using Microsoft Visio 2016,how do we create a blank diagram for use with a data model?
Q5) Microsoft Visio 2016 is a component of Microsoft Office 2016. A)True B)False
Q6) In Microsoft Visio 2016,how do we create database designs? Page 20
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Chapter 15: Learn how to create Microsoft Access 2016 switchboards
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Sample Questions
Q1) Microsoft Access 2016 switchboard command buttons are built using ________.
A) the Text Label Wizard
B) the Command Button Wizard
C) the All Button Wizard
D) the Form Wizard
E) the database Wizard
Q2) Microsoft Access 2016 switchboards can be used to create ________.
A) application forms
B) application reports
C) application menus
D) application databases
E) application network connections
Q3) Microsoft Access 2016 switchboards are built in a report window in Microsoft Access 2016.
A)True
B)False
Q4) When using Microsoft Access 2016,how do we create a switchboard?
Q5) Microsoft Access 2016 switchboards use command buttons as part of the menu. A)True
B)False
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Chapter 16: Know how to configure and update PHP
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Q1) What is the Microsoft Web Platform Installer,and what are the advantages and disadvantages of using it to install PHP?
Q2) The default WPI 5.0 installation provides full support for both the standard ODBC and the PHP Data Objects (PDO)version of ODBC.
A)True
B)False
Q3) The default Web page for the IIS Web server is ________.
A) startup.html
B) startup.htm
C) iisstart.html
D) iisstart.htm
E) index.html
Q4) For a Web server running the Linux operating system,the most commonly used Web server is ________.
A) the IIS Web server
B) the Apache Web server
C) the Tomcat Web server
D) the ASP.NET Web server
E) the JSP Web server
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Chapter 17: Learn the basic concepts of business intelligence (BI)systems
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Sample Questions
Q1) Business Intelligence (BI)reporting systems can analyze data using standard SQL.
A)True
B)False
Q2) Which of the following popular data mining techniques require special software?
A) Decision tree analysis
B) Logistic regression analysis
C) Neural networks
D) Both A and B
E) A, B and C
Q3) In a common form of RFM analysis,an RFM score of 5 1 1 means that the customer orders frequently and orders items of high monetary value but has not ordered anything for some time.
A)True
B)False
Q4) Report modes include dynamic and static.
A)True
B)False
Q5) A report that is sent to users on a predetermined schedule is called a(n)________ report.
Q6) Data warehouse data is often stored in a(n)________. Page 24
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Chapter 18: Learn about replicated partitioned data stores for supporting clusters
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Sample Questions
Q1) XML provides a standardized,non-customizable way to describe the content of a document.
A)True
B)False
Q2) In database/ XML applications,it is a recommended practice that ________.
A) elements represent data, and attributes represent metadata
B) elements carry metadata, and attributes carry data
C) elements and attributes carry data, and the XML Schema carry metadata
D) elements and attributes carry metadata, and the XML Schema carry data
E) either A or B
Q3) XSLT is a robust and powerful transformation language that can be used to materialize XML documents into HTML.
A)True
B)False
Q4) One of the four categories of NoSQL databases used in the text is the Word Processing database.
A)True
B)False
Q5) What are the elements of a graph database?
Q6) What is XML,and why is it significantly better than HTML? Page 26
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