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TESTBANK FOR DATABASE SYSTEMS DESIGN, IMPLEMENTATION, & MANAGEMENT
Testbank for Database Systems Design, Implementation,
&Management Introduction to Database Management Systems
Florida International University
True / False questions
- Data and information are essentially the same thing. a. True b. False
ANSWER: False
DIFFICULTY: Easy REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- Data processing can be as simple as organizing data to reveal patterns. a. True b. False
ANSWER: True
DIFFICULTY: Easy REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- Data is the result of processing raw facts to reveal its meaning. a. True b. False
ANSWER: False
DIFFICULTY: Easy REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- When data are entered into a form and saved, they are placed in the underlying database as knowledge. a. True b. False
ANSWER: False
DIFFICULTY: Moderate REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- Data constitute the building blocks of information. a. True b. False
ANSWER: True
DIFFICULTY: Easy REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- Metadata describe the data characteristics and the set of relationships that links the data found within the database. a. True b. False ANSWER: True DIFFICULTY: Easy REFERENCES: 1 - 3 Introducing the Database LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- The only way to access the data in a database is through the DBMS. a. True b. False
ANSWER: True
DIFFICULTY: Moderate REFERENCES: 1 - 3a Role and Advantages of the DBMS
ANSWER: False DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A data warehouse can store data derived from many sources. a. True b. False
ANSWER: True
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- Structure is based on the type of processing to be performed on the data. a. True b. False
ANSWER: True
DIFFICULTY: Moderate REFERENCES: 1 - 3 b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- Corporations use only structured data. a. True b. False
ANSWER: False
DIFFICULTY: Moderate REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- Field refers to a collection of related records. a. True b. False
ANSWER: False
DIFFICULTY: Easy REFERENCES: 1 - 5b Computerized File Systems LEARNING OBJECTIVES: 01.04 - See how modern databases evolved from file systems
- Structural dependence exists when it is possible to make changes in the file structure without affecting the application program’s ability to access the data. a. True b. False
ANSWER: False
DIFFICULTY: Moderate REFERENCES: 1 - 6a Structural and Data Dependence LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
- One disadvantage of a database system over previous data management approaches is increased costs. a. True b. False
ANSWER: True
DIFFICULTY: Easy REFERENCES: 1 - 7c Managing the Database System: A Shift in Focus LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
- Data anomaly is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions. a. True b. False
ANSWER: False
DIFFICULTY: Easy REFERENCES: 1 - 6b Data Redundancy LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
ANSWER: c
DIFFICULTY: Easy REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- Accurate, relevant, and timely information is the key to ____. a. data management b. good decision making c. knowledge d. understanding
ANSWER: b
DIFFICULTY: Moderate REFERENCES: 1 - 2 Data versus Information LEARNING OBJECTIVES: 01.01 - Define the difference between data and information
- End-user data is _____. a. knowledge about the end users b. raw facts of interest to the end user c. information about a specific subject d. accurate, relevant and timely information
ANSWER: b
DIFFICULTY: Easy REFERENCES: 1 - 3 Introducing the Database LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ provide a description of the data characteristics and the set of relationships that link the data found within the database. a. Queries b. End - user data c. Metadata d. Schemas
ANSWER: c
DIFFICULTY: Easy REFERENCES: 1 - 3 Introducing the Database LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ serve as the intermediary between the user and the database. a. DBMSs b. Metadata c. End-user data d. Programming languages
ANSWER: a
DIFFICULTY: Easy REFERENCES: 1 - 3a Role and Advantages of the DBMS LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- The database structure in a DBMS is stored as a _____. a. single file b. collection of files c. set of key/value pairs d. collection of queries
ANSWER: b
DIFFICULTY: Easy REFERENCES: 1 - 3a Role and Advantages of the DBMS LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A(n) _____ might be written by a programmer or it might be created through a DBMS utility program. a. query b. operating system c. database management system d. application
ANSWER: d
DIFFICULTY: Easy REFERENCES: 1 - 3a Role and Advantages of the DBMS LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ exists when different versions of the same data appear in different places. a. Data inconsistency b. Poor data security c. Structural dependence d. Conceptual dependence
LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A workgroup database is a(n) _____ database. a. single-user b. multiuser c. desktop d. distributed
ANSWER: b
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A desktop database is a _____ database. a. single-user b. multiuser c. workgroup d. distributed
ANSWER: a
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A data warehouse contains historical data obtained from the _____. a. operational databases b. desktop database c. enterprise databases d. workgroup databases
ANSWER: a
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ data exist in the format in which they were collected. a. Structured b. Semistructured c. Unstructured d. Historical
ANSWER: c
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ data exist in a format that does not lend itself to processing that yields information. a. Structured b. Semistructured c. Unstructured d. Historical
ANSWER: c
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ are the result of formatting disorganized data in order to facilitate storage, use and generation of information. a. Structured data b. Raw data c. Unstructured data d. Obsolete data
ANSWER: a
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- Most data that can be encountered are best classified as _____. a. structured b. semistructured c. unstructured d. historical
ANSWER: b
DIFFICULTY: Easy
c. column d. file
ANSWER: d
DIFFICULTY: Easy REFERENCES: 1 - 5b Computerized File Systems LEARNING OBJECTIVES: 01.04 - See how modern databases evolved from file systems
- A _____ is a character or group of characters that has a specific meaning. a. database b. field c. record d. file
ANSWER: b
DIFFICULTY: Easy REFERENCES: 1 - 5b Computerized File Systems LEARNING OBJECTIVES: 01.04 - See how modern databases evolved from file systems
- Which of the following is true of spreadsheet applications? a. They provide enhanced security and robust data sharing features. b. They do not allow manipulation of data once entered. c. They are a better alternative to databases.
ANSWER: d
DIFFICULTY: Moderate d. They enhance the user's ability to understand the data. REFERENCES: 1 - 5c File System Redux: Modern End-User Productivity LEARNING OBJECTIVES: 01.04 - See how modern databases evolved from file systems
- Which of the following refers to the situation where different versions of the same data are stored at different places because they weren’t updated consistently? a. Data query b. Data integrity c. Data dictionary d. Data redundancy
ANSWER: d
DIFFICULTY: Easy REFERENCES: 1 - 6b Data Redundancy LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
- Data is said to be verifiable if: a. the data always yields consistent results. b. the data cannot be changed or manipulated. c. the data is obtained from trusted sources. d. the data is stored in different places within the database.
ANSWER: a
DIFFICULTY: Easy REFERENCES: 1 - 6b Data Redundancy LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
- _____ is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions. a. Data integrity b. Data anomaly c. Data ubiquity d. Data quality
ANSWER: a
DIFFICULTY: Easy REFERENCES: 1 - 6b Data Redundancy LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
- The term _____ refers to an organization of components that define and regulate the collection, storage, management and use of data within a database environment. a. structured data b. transaction c. management system d. database system
ANSWER: d
DIFFICULTY: Moderate REFERENCES: 1 - 7a The Database System Environment LEARNING OBJECTIVES: 01.06 - Outline the main components of the database system
- _____ relates to the activities that make the database execute transactions more efficiently in terms of storage and access speed. a. Performance tuning b. Database design c. Query access d. Database management
- _____ is data about data through which the end-user data are integrated and managed.
ANSWER: Metadata
DIFFICULTY: Easy REFERENCES: 1 - 3 Introducing the Database LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A(n) _____ is a collection of programs that manages the database structure and controls access to the data stored in the database.
ANSWER: DBMS (database management system)
database management system (DBMS) database management system DBMS DIFFICULTY: Easy REFERENCES: 1 - 3 Introducing the Database LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A(n) _____ is a spur-of-the-moment question.
ANSWER: ad hoc query
DIFFICULTY: Moderate REFERENCES: 1 - 3a Role and Advantages of the DBMS LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A(n) _____ is a specific request issued to the DBMS for data manipulation.
ANSWER: query
DIFFICULTY: Easy REFERENCES: 1 - 3a Role and Advantages of the DBMS
LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ databases focus primarily on storing data used to generate information required to make tactical or strategic decisions.
ANSWER: Analytical
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ is a special language used to represent and manipulate data elements in a textual format.
ANSWER: XML (Extensible Markup Language)
Extensible Markup Language (XML) Extensible Markup Language XML DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- _____ exists when it is possible to make changes in the data storage characteristics without affecting an application program’s ability to access data.
ANSWER: Data independence
DIFFICULTY: Moderate REFERENCES: 1 - 6a Structural and Data Dependence LEARNING OBJECTIVES: 01.05 - Understand flaws in file system data management
- The term _____ refers to scattered locations storing the same basic data.
ANSWER: islands of information
- _____ relates to activities that make a database operate more efficiently in terms of storage and access speed.
ANSWER: Performance tuning
DIFFICULTY: Easy REFERENCES: 1 - 7b DBMS Functions LEARNING OBJECTIVES: 01.06 - Outline the main components of the database system
- Web and mobile technologies that enable “anywhere, anytime, always on” human interactions are forms of _____.
ANSWER: social media
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- A database that is created and maintained using services such as Microsoft Azure or Amazon AWS is called a(n) _____ database.
ANSWER: cloud
DIFFICULTY: Easy REFERENCES: 1 - 3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- When a database stores the majority of data in RAM rather than in hard disks, it is referred to as a(n) _____ database.
ANSWER: in-memory
DIFFICULTY: Easy REFERENCES: 1 - 8 Preparing for Your Database Professional LEARNING OBJECTIVES: 01.07 - Describe the main functions of a database management system (DBMS) Essay
- Describe what metadata are and what value they provide to the database system.
ANSWER: The metadata describe the data characteristics and the set of relationships that links the data
found within the database. For example, the metadata component stores information such as the name of each data element, the type of values (numeric, dates, or text) stored on each data element, and whether the data element can be left empty. The metadata provide information that complements and expands the value and use of the data. In short, metadata present a more complete picture of the data in the database. Given the characteristics of metadata, you might hear a database described as a “collection of self-describing data.” DIFFICULTY: Moderate REFERENCES: 1 - 3 Introducing the Database LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- What are the advantages of having the DBMS between the end user’s applications and the database?
ANSWER: Having a DBMS between the end user’s applications and the database offers some important
advantages. First, the DBMS enables the data in the database to be shared among multiple applications or users. Second, the DBMS integrates the many different users’ views of the data into a single all-encompassing data repository. DIFFICULTY: Moderate REFERENCES: 1 - 3a Role and Advantages of the DBMS LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making
- Discuss some considerations when designing a database.
