Applied Database Technologies
Exam Materials
Course Introduction
Applied Database Technologies explores the principles and practical applications of modern database systems to solve real-world problems. Students will examine key concepts such as data modeling, relational and non-relational database architectures, query languages (with an emphasis on SQL), and database design best practices. The course also covers emerging technologies, including NoSQL databases, cloud-based data storage, performance optimization, data security, and backup strategies. Through hands-on projects and case studies, students gain experience in designing, implementing, and managing databases, preparing them to address the evolving data needs of contemporary organizations.
Recommended Textbook
Database Concepts 7th Edition by David M. Kroenke
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18 Chapters
1205 Verified Questions
1205 Flashcards
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Chapter 1: Getting Started
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76 Verified Questions
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Sample Questions
Q1) Briefly describe the function of an application program in a database system. Answer: The application program is responsible for creating and processing forms.The application displays the form to the user,allows the user to complete the data entry,evaluates the form to determine which data management tasks need to be performed,and transmits the appropriate requests to the DBMS.The application creates and transmits queries.The queries are requests for data that are created in a language like SQL,and transmitted to the DBMS to have the requested data returned to the application program.The application also creates and processes reports.The query to retrieve the necessary data for the report is sent to the DBMS.When the DBMS returns the needed data,the application manipulates it as necessary to create the requested report.The application program also applies application logic to control the manipulation of data in accordance with the business rules.Finally,the application program is responsible for providing control.Control must be exercised to allow the users to make choices for functions and tasks as appropriate for their jobs.Also,control must be exercised to manage the activities of the DBMS.
Q2) The DBMS controls ________ by ensuring that one user's work does not inappropriately interfere with another user's work.
Answer: concurrency
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Page 3
Chapter 2: The Relational Model
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87 Flashcards
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Sample Questions
Q1) In Microsoft Access,referential integrity constraints are created in the ________.
Answer: Edit Relationships dialog box
Q2) When the primary key of one relation is placed in a second relation to represent a relationship,the attribute in the second relation is called a(n)________ key.
Answer: foreign
Q3) Explain the concept of a functional dependency.
Answer: A functional dependency is a relationship that exists among the attributes of a relation,such that if the value of one attribute or group of attributes is known,the value of another attribute or group of attributes can be determined.In a functional dependency,the attribute(s)whose value determines the value of the other attribute is called the "determinant." The other attribute,whose value is determined by the determinant,is said to be functionally dependent on the determinant.
Q4) The first step of the normalization process is to identify all the candidate keys of a relation.
A)True
B)False
Answer: True
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Chapter 3: Structured Query Language
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96 Flashcards
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Sample Questions
Q1) Given the table
CUSTOMER(CustID,Name,PhoneNumber,AccountBalance)
write the standard SQL query to retrieve the Name and Phone Number of customers with a balance greater than 50.
Answer: SELECT Name,PhoneNumber FROM CUSTOMER
WHERE AccountBalance > 50;
Q2) Given the table CUSTOMER(CustID,Name,PhoneNum,AcctBalance)
What is the standard SQL query phrase to retrieve the Name and Phone Number of customers?
A) SELECT CUSTOMER-Name AND CUSTOMER-PhoneNum
B) SELECT (CUSTOMER-Name AND CUSTOMER-PhoneNum)
C) SELECT Name, PhoneNum
D) SELECT (Name, PhoneNum)
E) SELECT *
Answer: C
Q3) The SQL command used to add new data to a table is ________.
Answer: INSERT
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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76 Flashcards
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Sample Questions
Q1) It is possible for an entity to have a relationship to itself.
A)True
B)False
Q2) When an entity class has a relationship with itself,it is called a(n)________ relationship.
Q3) In crow's foot style E-R diagrams,a crow's foot mark on the relationship line near an entity indicates:
A) a minimum cardinality of zero.
B) a minimum cardinality of one.
C) a maximum cardinality of one.
D) a maximum cardinality of many.
E) Both B and C
Q4) Microsoft Access 2013 wizards allow easy mock-ups of forms and reports for prototyping.
A)True
B)False
Q5) Explain the ambiguity in the broad definition of a weak entity.
Page 6
Q6) In crow's foot style E-R diagrams,an entity class is represented by a(n)________.
Q7) Recursive relationships occur when an entity has a relationship with ________.
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Chapter 5: Database Design
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Sample Questions
Q1) The first step of database design is to define a table for each ________.
Q2) Which of the following is the correct technique for representing a 1:N relationship in the relational model?
A) The key of the entity on the one side is placed into the relation for the entity on the many side.
B) The key of the child is placed into the relation of the parent.
C) The key of either relation can be placed into the other relation.
D) The key of the entity on the many side is placed into the relation for the entity on the one side.
E) An intersection relation is created, and the keys from both parent entities are placed as keys in the intersection relation.
Q3) Relations should always be normalized to the highest degree possible.
A)True
B)False
Q4) What is denormalization and why can it be desirable?
Q5) A surrogate key is appropriate when the primary key of a table contains a lengthy text field.
A)True
B)False
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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) What is the least restrictive isolation level that will prevent phantom read problems?
A) Read Committed
B) Serializable
C) Read Uncommitted
D) Atomic Read
E) Repeatable Read
Q3) Microsoft Access 2013 can secure databases by using ________ to encrypt and decrypt the database files.
Q4) Distinguish between reprocessing and rollforward as database recovery techniques.
Q5) Breaking hardware,power outages,and human mistakes are all reasons that ________.
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Chapter 7: Database Processing Applications
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Sample Questions
Q1) Every DBMS product has an application programming interface (API).
A)True
B)False
Q2) With PHP,we enclose PHP commands in between the ________ and ________ symbols.
Q3) With ODBC,only a single driver is needed to handle all data source types,such as SQL Server,Oracle Database,MySQL,and Microsoft Access.
A)True
B)False
Q4) When using Microsoft Access and IIS,a good basic ASCII text editor for producing HTML is ________.
Q5) What is a stored procedure?
Q6) A stored procedure is invoked automatically by the DBMS whenever certain events occur.
A)True
B)False
Q7) A stored procedure is a module of logic normally written in a traditional programming language like C++ and stored in the application program.
A)True
B)False
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Chapter 8: Big Data, data Warehouses, and Business Intelligence Systems
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99 Verified Questions
99 Flashcards
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Sample Questions
Q1) Business Intelligence (BI)reporting systems can do which of the following operations?
A) Filter data
B) Group data
C) Modify data
D) Both A and B
E) All of the above
Q2) Data mining applications are used to accomplish which of the following tasks?
A) Perform what-if analysis
B) Make predications
C) Facilitate decision making
D) Both A and B
E) All of the above
Q3) Hadoop is a(n):
A) RDMBS.
B) OODBMS.
C) distributed file system (DFS).
D) print system.
E) Web server.
Q4) What is a Microsoft Excel PivotTable?
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Chapter 9: Getting Started With Microsoft Sql Server 2012
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) Logging into the SQL Server 2014 Express DBMS is done using:
A) the Connect to Server command.
B) the Connect to Server dialog box.
C) the Connect to SQL Server Instance command.
D) the Connect to SQL Server Instance dialog box.
E) None of the above is correct.
Q2) Database objects are displayed in the Object Explorer window in the SQL Server Management Studio.
A)True
B)False
Q3) The Microsoft SQL Server 2014 Management Studio is included with Microsoft SQL Server 2014 Express Advanced. A)True B)False
Q4) SQL query results are displayed in a tabbed Resultset window. A)True B)False
Q5) An important reason for using SQL Server 2014 Express is that it has ________.
Q6) Database objects are displayed in the ________ window in the SQL Server Management Studio.
Page 11
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Chapter 10: Getting Started With Oracle Database 11g
Release 2
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43 Verified Questions
43 Flashcards
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Sample Questions
Q1) In SQL Developer,DBMS objects are displayed:
A) in the Navigation Pane.
B) in the Object Browser.
C) in the Connections area.
D) in the tabbed document window.
E) in the command tab.
Q2) With Oracle Database,using a sequence does not guarantee valid surrogate key values.
A)True
B)False
Q3) The Oracle Database ODBC Client is automatically installed when Oracle Database 11g Release 2 is installed.
A)True
B)False
Q4) To run an SQL query,click the ________ button.
Q5) Explain sequences and their relationship to surrogate keys.
Q6) Sequences are most often used to provide values for surrogate keys.
A)True
B)False
Q7) Users in SQL Developer log into a workspace using the ________ account. Page 12
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Chapter 11: Getting Started With Mysql 56 Community Server
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Sample Questions
Q1) Describe how to create a new database in MySQL 5.6 Community Server Edition.
Q2) To run an SQL script,click the Execute button on the Query Toolbar.
A)True
B)False
Q3) To start working with MySQL Server Community Edition in Windows 8.1,use the command Start | All Programs | MySQL | MySQL Workbench 6.1 CE.
A)True
B)False
Q4) Describe how to create relationships in a MySQL Workbench database design.
Q5) SQL statements can be run individually or as part of a related group of SQL statements known as a(n)________.
Q6) To run an SQL script,click the ________ button on the MySQL Workbench toolbar.
Q7) In the MySQL Table Editor,the abbreviation PK stands for partial key.
A)True
B)False
Q8) SQL query results are displayed in a tabbed ________ window.
Q9) Downloading and installing the MySQL connector/ODBC means that the ________ (name and version)driver will be available in the ODBC Data Source Administrator. Page 14
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Chapter 12: James River Jewelry Project Questions
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Sample Questions
Q1) When an SQL SELECT statement is used to retrieve data from a view instance,the maximum number of columns that can be specified in the SELECT is the same as the number of columns in the table underlying the view.
A)True
B)False
Q2) SQL views are constructed from:
A) CREATE statements.
B) INSERT statements.
C) UPDATE statements.
D) SELECT statements.
E) VIEW statements.
Q3) SQL views can be used to hide columns.
A)True
B)False
Q4) SQL triggers are used for ________.
A) validity checking
B) providing default values
C) updating views
D) A and B
E) A, B, and C
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Chapter 13: Sql Views
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Sample Questions
Q1) Databases are created in a DBMS during the ________ step of the SDLC.
A) system definition
B) requirements analysis
C) component design
D) implementation
E) systems maintenance
Q2) Information can be defined as:
A) data presented in a meaningful context.
B) knowledge derived from data.
C) data processed by summing, ordering, averaging, grouping, comparing or other similar operations.
D) A and B
E) A, B and C
Q3) Michael Porter includes procurement in his list of ________ activities.
Q4) One deliverable from the requirements analysis step is a ________.
Q5) Databases are created in a DBMS during the ________ step.
Q6) One definition of ________ is knowledge derived from data.
Q7) User interviews are conducted during the requirements analysis step.
A)True
B)False
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Chapter 14: Getting Started in Systems Analysis and Design
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Sample Questions
Q1) In Microsoft Visio 2013,clicking the FILE command tab opens:
A) the File menu.
B) the Backstage view.
C) the Open dialog box.
D) the Save As dialog box.
E) the Save dialog box.
Q2) In Microsoft Visio 2013,for a Relationship object relationship that is one-mandatory on the child side of the relationship,the correct setting in the Symbol menu is:
A) 1 and only 1.
B) 1 or more.
C) Zero or 1.
D) Zero or more.
E) Range [At least][At most].
Q3) In Microsoft Visio 2013,we can create database designs using Entity and Dynamic connector objects.
A)True
B)False
Q4) In Microsoft Visio 2013,how do we create database designs?
Q5) In Microsoft Visio 2013,how do we create data models?
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Chapter 15: Getting Started With Microsoft Visio 2010
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Sample Questions
Q1) Microsoft Access 2013 switchboards build command buttons by using the
Q2) Microsoft Access 2013 switchboards use ________ as part of the switchboard.
A) text buttons
B) report windows
C) Wizard buttons
D) command buttons
E) All of the above
Q3) Microsoft Access 2013 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) All of the above
Q4) Microsoft Access 2013 switchboards are built using a Microsoft Access ________.
Q5) Microsoft Access 2013 switchboards are built in a report window in Microsoft Access 2013.
A)True
B)False
Q6) Microsoft Access 2013 switchboards use ________ to place text on switchboards.
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Q7) When using Microsoft Access 2013,how do we create a switchboard?
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Chapter 16: The Access Workbench-section Microsoft
Access
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Sample Questions
Q1) 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.
Q2) The Java JDK is installed directly from the Java download page at:
A) www.java.com.
B) www.jre.com.
C) www.jdk.com.
D) www.sun.com.
E) www.oracle.com.
Q3) For a Web server running the Windows 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.
20
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Chapter 17: Getting Started With Web Servers, php, and the
Netbeans IDE
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Sample Questions
Q1) In a common form of RFM analysis,a score of 1 is "high" or "good" while a score of 5 is "low" or "bad."
A)True
B)False
Q2) Business Intelligence (BI)reporting systems can do which of the following operations?
A) Filter data
B) Group data
C) Modify data
D) Both A and B
E) All of the above
Q3) We have obtained access to the company's operational data.In one record,we find that a customer's age has been recorded as "337." This is an example of:
A) dirty data.
B) inconsistent data.
C) non-integrated data.
D) a "wrong format" problem.
E) a "too much data" problem.
Q4) Data warehouses are populated with data prepared by ________ programs.
21
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Chapter 18: Business Intelligence Systems
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Sample Questions
Q1) The CAP theorem defines the three properties,one of which is partition tolerance.
A)True
B)False
Q2) XSLT is a robust and powerful transformation language that can be used to materialize XML documents into HTML.
A)True
B)False
Q3) Graph databases are composed of three elements,one of which is the edge.
A)True
B)False
Q4) What is an XML Schema?
Q5) Graph databases are composed of ________.
Q6) An example of a graph database is ________.
A) Dynamo
B) Couchbase Server
C) Bigtable
D) Neo4j
E) MySQL
Q7) XML documents that conform to their DTD are said to be ________.
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