Computer Information Systems
Exam Answer Key
Course Introduction
Computer Information Systems introduces students to the concepts and technologies that form the foundation of modern information systems in business and organizations. The course covers topics such as computer hardware and software, networking, databases, systems analysis and design, and information security. Students learn how information systems are used to support decision-making, improve efficiency, and gain a strategic advantage. Through practical exercises and case studies, students develop problem-solving skills and an understanding of how to align technological solutions with organizational goals. This course serves as a comprehensive overview for those interested in careers bridging technology and business operations.
Recommended Textbook
Database Concepts 8th Edition by David M. Kroenke
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1259 Verified Questions
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Chapter 1: Getting Started
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Sample Questions
Q1) A relational database stores data in the form of ________. Answer: tables
Q2) Which of the following problems associated with storing data in a list is avoided by storing data in a relational database?
A) CPU processing inefficiencies
B) Lack of necessary bandwidth
C) Running out of memory storage
D) Duplication of data items
E) Incorrect data typing
Answer: D
Q3) Microsoft Access 2016 uses the AutoNumber data type to create surrogate keys.
A)True
B)False Answer: True
Q4) A relational database can be defined as a self-describing collection of related tables.
A)True
B)False Answer: True
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Chapter 2: The Relational Model
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Sample Questions
Q1) The first step of the normalization process is to identify all the candidate keys of a relation.
A)True
B)False
Answer: True
Q2) Candidate keys may or may not be unique.
A)True
B)False
Answer: False
Q3) Ensuring that every value of a foreign key matches a value of the corresponding primary key is an example of a referential integrity constraint.
A)True
B)False
Answer: True
Q4) Since Microsoft Access is a personal database,it is not subject to the modification problems that occur in other relational databases.
A)True
B)False
Answer: False
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Chapter 3: Structured Query Language
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Sample Questions
Q1) In Microsoft Access,tables are added to a QBE Query window by selecting the tables from the ________ dialog box.
Answer: Show Table
Q2) An SQL data type of ________ means that values consist of seven decimal numbers with two numbers assumed to the right of the decimal point.
Answer: Numeric(7,2)
Q3) Conditions in an SQL INSERT command and after the SQL ________ keyword require single quotes around values for Char and VarChar columns,but not around values for Integer and Numeric columns.
Answer: WHERE
Q4) What are SQL Built-in Functions?
Answer: SQL Built-in Functions are functions that manipulate the results of an SQL SELECT statement.The built-in functions for standard SQL are COUNT,SUM,AVG,MAX,and MIN.The COUNT function counts the number of rows in the result.The SUM function totals the values in a number-oriented field.The AVG function calculates the mean of the values in a number-oriented field.The MAX function determines the highest value,and the MIN function determines the lowest value,in a number-oriented field.
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Chapter 4: Data Modeling and the Entity Relationship Model
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Sample Questions
Q1) Whether or not an instance of one entity class must participate in a relationship with another entity class is indicated by the ________.
A) degree
B) recursive cardinality
C) minimum cardinality
D) maximum cardinality
E) ordinality
Q2) During the design phase of developing a database system,the users are asked about the need for changes to existing forms and reports.
A)True
B)False
Q3) Microsoft Access database files can be easily copied to create multiple copies of a database.
A)True
B)False
Q4) In a traditional E-R diagram,the relationship is symbolized by a diagram.
A)True
B)False
Q5) Distinguish between a data model and a database design.
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Chapter 5: Database Design
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Sample Questions
Q1) Explain the representation of a many-to-many strong entity relationship in a relational database design.
Q2) Which of the following is not true about surrogate keys?
A) They are identifiers that are supplied by the system, not the users.
B) They have no meaning to the users.
C) They are nonunique within a table.
D) They can be problematic when combining databases.
E) The DBMS will not allow their values to be changed.
Q3) What relationship pattern is illustrated in the following schema?
EMPLOYEE (EmployeeID,OfficePhone,Manager)
Manager in EMPLOYEE must exist in EmployeeID in EMPLOYEE
A) Association relationship
B) Intersection relationship
C) Recursive relationship
D) Strong entity relationship
E) Supertype/subtype relationship
Q4) All recursive relationships are 1:1.
A)True
B)False
Q5) How are one-to-one recursive relationships addressed using the relational model?
Page 7
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Chapter 6: Database Administration
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Sample Questions
Q1) The recovery technique in which the database is returned to a known state and then all valid transactions are reapplied to the database is known as ________.
A) reprocessing
B) rollback
C) transaction logging
D) rollforward
E) checkpointing
Q2) Microsoft Access 2016 databases cannot be secured by password encryption.
A)True
B)False
Q3) What is the difference between authentication and authorization?
Q4) Microsoft Access 2016 databases can be secured using trusted locations for database storage.
A)True
B)False
Q5) The simplest and most feasible means of recovering a database is through reprocessing.
A)True
B)False
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Chapter 7: Database Processing Applications
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Sample Questions
Q1) Every DBMS product uses the same API.
A)True
B)False
Q2) HTML standards are defined by the World Wide Web Consortium (W3C).
A)True
B)False
Q3) Basic Web pages are created using Hypertext Markup Language (HTML).
A)True
B)False
Q4) According to the ODBC standard,a(n)________ is a database and its associated DBMS,operating system,and network platform.
Q5) 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
Q6) A(n)________ is a program stored within the DBMS that is invoked by the DBMS when a specified event occurs.
Q7) Briefly describe PHP.
Q8) What are XML Web Services?
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Chapter 8: Data Warehouses,Business Intelligence
Systems,and Big Data
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Sample Questions
Q1) Business Intelligence (BI)systems fall into which of the following categories?
A) Processing
B) Reporting
C) Data mining
D) Both A and B
E) Both B and C
Q2) Report delivery is more important for data mining than it is for reporting systems.
A)True
B)False
Q3) The term drill down refers to the capability of seeing the data in smaller and smaller units.
A)True
B)False
Q4) 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
Q5) A variant of the star schema is the ________.
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Q6) A(n)________ is an information system that helps users analyze and use data.
Chapter 9: Learn how to create a database in SQL Server
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Sample Questions
Q1) SQL Server Management Studio provides a text editor to create SQL commands,such as creating tables.
A)True
B)False
Q2) An SQL command to add data into a database is ADD INTO A)True
B)False
Q3) SQL Server 2016 requires that ________ be installed.
Q4) To run an SQL script,click the ________ button on the SQL Editor Toolbar.
Q5) Database objects are displayed in the Object Explorer window in the SQL Server Management Studio.
A)True
B)False
Q6) The ODBC Driver 11 for SQL Server is installed ________ when SQL Server 2016 is installed.
Q7) To create a new SQL query,click the New Query button. A)True B)False
Q8) Describe how to create and run an SQL query in SQL Server 2016 Express. Page 11
Q9) SQL query results are displayed in a tabbed ________ window.
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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) Which of the following is an account name for which you would enter a password to connect to a workspace in Oracle SQL Developer?
A) Database Username
B) Application Express Username
C) INTERNAL
D) Both A and B
E) A, B and C
Q2) All Excel worksheets imported into Oracle Database will have an appropriate column for a primary key.
A)True
B)False
Q3) 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
Q4) You may use simple text editors to create SQL scripts for Oracle Database XE.
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) MySQL Community Server 5.7 requires that the .NET Framework version 4.5.1 be installed.
A)True
B)False
Q2) In the MySQL Table Editor,the abbreviation for NOT NULL is ________.
A) PK
B) NN
C) UQ
D) BIN
E) AI
Q3) Describe how to add a table object to a MySQL Workbench database design.
Q4) In the MySQL Table Editor,the abbreviation for AUTO_INCREMENT is ________.
A) PK
B) NN
C) UQ
D) BIN
E) AI
Q5) An important reason for using MySQL 5.7 Community Server Edition is that it
Q6) A new MySQL Server database is known as a new ________. Page 14
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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) What are SQL triggers and how are they used?
Q2) SQL triggers are used for providing default values,validity checking,updating views,and performing referential integrity actions.
A)True
B)False
Q3) Stored procedures have the advantage of greater security,decreased network traffic,SQL optimized by the DBMS compiler,and code sharing.
A)True
B)False
Q4) Similar to correlated subqueries,queries on recursive relationships use aliases (copies)of the same table.
A)True
B)False
Q5) The Oracle DBMS supports the SQL BEFORE trigger.
A)True
B)False
Q6) The SQL keyword ________ can be used with SELECT statements retrieving view instances to sort the results of the SELECT.
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Sample Questions
Q1) One deliverable from the requirements analysis step is a statement of requirements (SOR).
A)True
B)False
Q2) A computer-based information system has four components.
A)True
B)False
Q3) Typically,a user requirements document (URD)contains all except ________.
A) data model
B) database schema
C) introduction
D) revision history
E) project delivery requirements
Q4) The classic systems analysis methodology is called the ________.
A) Systems Development Life Cycle (SDLC)
B) Analysis Development Life Cycle (ADLC)
C) Component Development Life Cycle (CDLC)
D) Information Development Life Cycle (IDLC)
E) None of the above is correct.
Q5) Michael Porter includes procurement in his list of ________ activities.
Page 17
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Chapter 14: Learn how to create E-R data models in
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Sample Questions
Q1) In Microsoft Visio 2016,when the Entity object is placed in a diagram,it is labeled explicitly as a table.
A)True
B)False
Q2) In Microsoft Visio 2016,when the Entity object is placed in a diagram,it is labeled as a(n)________.
A) entity
B) table
C) relationship
D) dynamic connector
E) category
Q3) In Microsoft Visio 2016,Relationship connector objects can be formatted with the line end symbols needed to create IE Crow's Foot notation.
A)True
B)False
Q4) In Microsoft Visio 2016,we can create database designs using Entity and Dynamic connector objects.
A)True
B)False
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Chapter 15: Learn how to create Microsoft Access 2016 switchboards
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Sample Questions
Q1) Microsoft Access 2016 switchboards use text labels as part of the menu.
A)True
B)False
Q2) Microsoft Access 2016 switchboards are built in a report window in Microsoft Access 2016.
A)True
B)False
Q3) A Microsoft Access 2016 switchboard provides a button-based menu system in Microsoft Access 2016.
A)True
B)False
Q4) Microsoft Access 2016 switchboards use ________ as part of the switchboard.
A) text buttons
B) report windows
C) wizard buttons
D) command buttons
E) form buttons
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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Sample Questions
Q1) For a workstation running the Windows 10 operating system,a commonly used Web browser is Microsoft Edge.
A)True
B)False
Q2) For a workstation running the Windows operating system,all the necessary user file system permissions to the Web page area are already granted.
A)True
B)False
Q3) NetBeans is an IDE.
A)True
B)False
Q4) For a workstation running the Windows operating system,the user file system permissions Modify and Write must be granted to the Users group at the wwwroot folder. A)True
B)False
Q5) What program must be installed before the installation of the NetBeans IDE,and how do you obtain and install this product?
Q6) What is PHP?
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Chapter 17: Learn the basic concepts of business intelligence (BI)systems
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Sample Questions
Q1) Report authoring includes responsibility for delivery of the report.
A)True
B)False
Q2) A data mart is a collection of data that addresses a particular component or functional area of a business.
A)True
B)False
Q3) Business Intelligence (BI)________ are used to filter data,sort data,group data and make simple calculations based on the data.
Q4) Reports that rely on the most current data when they are prepared are called dynamic reports.
A)True
B)False
Q5) In market basket analysis,support is defined as the probability that two items will be purchased together.
A)True
B)False
Q6) What is a star schema?
Q7) What is a data warehouse?
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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) The default cardinality for elements in an XML Schema is ________.
A) 0.1
B) 1.1
C) 1.N
D) N.1
E) M.N
Q3) XML Schemas consist of ________.
A) elements
B) attributes
C) properties
D) both A and B
E) A, B, and C
Q4) What is an XML DTD?
Q5) XML Schema is a synonym for Document Type Declaration (DTD).
A)True
B)False
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