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41 terms

ISM3013 Quiz 3

STUDY
PLAY
Data rot refers to the quality of the data itself.
True
False
False
Operational data are usually kept in an organization's data warehouse.
True
False
False
A(n) _____ represents a single character, such as a letter, number, or symbol.
A. byte
B. field
C. record
D. file
E. database
A.Byte
Tacit knowledge is the more objective, rational, and technical types of knowledge.
True
False
False
No alphabetic characters in a Social Security Number field is an example of _____ :
A. data isolation
B. data integrity
C. data consistency
D. data redundancy
E. application/data dependence
B.Data integrity
Having access to large amounts of data automatically results in better decision making.
True
False
False
The end result of the Data Life Cycle is the generation of _____.
A. information
B. data
C. knowledge
D. wisdom
E. decisions
C.Knowledge
Database management systems are software programs (or groups of programs) that provide access to a database.
True
False
True
Compared to data warehouses, data marts have which one of the following characteristics?
A. cost less
B. have longer lead time for implementation
C. have central rather than local control
D. contain more information
E. are harder to navigate
A.Cost less
Increasing amounts of external data need to be considered in making organizational decisions.
True
False
True
In a data warehouse, data are constantly purged as new data come in.
True
False
False
The data in a data warehouse have which of the following characteristics?
A. They are organized by subject.
B. They are coded in different formats.
C. They are updated in real time.
D. They are typically retained for a defined, but limited, period of time.
E. They are organized in a hierarchical structure.
A.They are organized by subject
A standardized language used to manipulate data is _____.
A. MS-Access
B. Oracle
C. query-by-example language
D. structured query language
E. data manipulation language
D.Structured query language
_____ occurs when various copies of the data agree.
A. Data isolation
B. Data integrity
C. Data consistency
D. Data redundancy
E. Application/Data dependence
F. Application/Data dependence
C.Data consistency
It is very difficult to manage data for which of the following reasons?
A. The amount of data stays about the same over time.
B. Data are scattered throughout organizations.
C. The decreasing amount of external data needs to be considered.
D. Data security is easy to maintain.
E. Data are stored in the same format throughout organizations.
B.Data are scattered throughout organizations
Structured query language is a relational database language that enables users to perform complicated searches with relatively simple statements.
True
False
True
The best way to capture the data in an organized format is to use a database.
True
False
True
Which of the following is not a communications channel?
A. Fiber optic cable
B. Satellite transmission
C. Twisted-pair wire
D. Integrated circuits
E. Cellular radio
D.Integrated circuits
An intranet is a network that uses Internet technologies and is designed to serve the information needs of a single organization.
True
False
True
Which of the following enables users to send data across sometimes unreliable networks?
A. Ethernet
B. TCP/IP
C. Protocols
D. Digital subscriber line
E. Integrated services digital network
B.TCP/IP
Consider this domain name, www.business.gsu.edu. The "edu" is the:
A. top-level domain
B. URL
C. web site locator
D. name of the computer
E. address of the Webmaster
A.Top-level domain
Which of the following is not a characteristic of twisted-pair wire?
A. Inexpensive
B. Easy to work with
C. Subject to interference from other electrical sources
D. Secure transmissions
E. None of the above
D.Secure transmissions
Consider this domain name, www.business.gsu.edu. The "gsu" is the:
A. top-level domain
B. name of the organization
C. URL
D. name of the specific computer
E. address of the Webmaster
B.Name of the organization
Modems are not necessary with digital subscriber lines.
True
False
False
Intranets give employees easy access to corporate information but are not used by employees to access corporate applications.
True
False
False
The cable medium with the highest bandwidth is:
A. twisted-pair wire
B. coaxial cable
C. fiber optic cable
D. cellular radio
E. copper cable
C.Fiber optic cable
Network interface cards are special adapters that link an individual device to the communications medium on a local area network.
True
False
True
An extranet is a network that uses Internet technologies and is designed to serve the information needs of a single organization.
True
False
False
A domain name is the official name assigned to an Internet site, consisting of multiple parts, separated by dots, which are translated from right to left in locating the site.
True
False
True
_____ are hardware devices that support data transmission and reception across a telecommunications system.
A. Integrated services digital networks
B. Digital subscriber lines
C. Communications channels
D. Peer-to-peer processing
E. Communications processors
E.Communications processors
In order to ensure that computers developed by different manufacturers can communicate, _____ have been developed.
A. protocols
B. client/server architectures
C. WANs
D. application software packages
E. developmental architectures
A.Protocols
The part of a network that handles the major traffic is the:
A. front end
B. network interface
C. multiplexer
D. backbone
E. front end processor
D.Backbone
Consider this domain name, www.xyz.abc.ru. The "ru" is the:
A. top-level domain
B. name of the organization
C. URL
D. the country designator
E. name of the computer
D.the country designator
Telecommunications systems can transmit text, data, graphics, voice, documents, and full motion video information.
True
False
True
The function of _____ is to convert digital signals to analog signals and vice-versa.
A. modems
B. multiplexers
C. front-end processors
D. servers
E. clients
A.Modems
A(n) _____ is a network designed to serve the internal informational needs of a single organization.
A. global network
B. extranet
C. Internet
D. intranet
E. World Wide Web
D.Intranet
The _____ is a global wide-area network that connects approximately one million organizational computer networks.
A. global network
B. extranet
C. Internet
D. intranet
E. World Wide Web
C.Internet
Characteristics of wide area networks include all of the following except:
A. they are provided by individual companies
B. they have large capacity
C. they cover large geographical areas
D. they combine multiple communications channels
E. the Internet is an example of a wide area network
A.They are provided by individual companies
A(n) _____ connects parts of the intranets of different organizations and allows secure communications among business partners.
A. global network
B. extranet
C. Internet
D. intranet
E. World Wide Web
B.Extranet
The components of a local area network include which of the following?
A. file server
B. client computers
C. wireline or wireless communications media
D. network interface cards
E. all of the above
E.All of the above
A(n) _____ allows a device to physically connect to a local area network's communications medium.
A. file server
B. network interface card
C. network operating system
D. communications channel
E. gateway
B.Network interface card