Question 1

Narrowband is capable of transmitting a maximum of 60,000 bps.

Accepted Answer

A) True 
 B)False

Question 2

Ethernet is a standard communication protocol embedded in software and hardware devices used for building a local area network (LAN).

Accepted Answer

A) True 
 B)False

Question 3

A__________is typically used to connect workstations and peripheral devices that are in close proximity.

Accepted Answer

A)   controller area network
B)   metropolitan area network
C)   wide area network
D)   local area network
E)   Select

Question 4

Compared with a star topology, a hierarchical topology:

Accepted Answer

A)   allows network expansion more easily.
B)   has cable layouts that are easy to modify.
C)   offers a great deal of network control and lower cost.
D)   is more effective at handling heavy but short bursts of traffic.

Question 5

Transmission Control Protocol operates at the _____ of the Open Systems Interconnection (OSI)  model.

Accepted Answer

A)   Network layer
B)   Physical layer
C)   Transport layer
D)   Data Link layer

Question 6

The__________is a seven-layer architecture for defining how data is transmitted from computer to computer in a network.

Accepted Answer

A)   Transmission Control Protocol model
B)   client/server model
C)   Open Systems Interconnection model
D)   basic input/output model
E)   Select

Question 7

In the early days of computer technology, a(n) __________system was justified because data-processing personnel were in short supply, hardware and software were expensive, and only large organizations could afford computers.

Accepted Answer

A)   centralized processing
B)   decentralized processing
C)   distributed processing
D)   interconnected processing
E)   Select

Question 8

__________is a voice-grade transmission channel capable of transmitting a maximum of 56,000 bps.

Accepted Answer

A)   Narrowband
B)   Baseband
C)   Broadband
D)   Sideband
E)   Select

Question 9

The _____ of the Open Systems Interconnection (OSI)  model generates the receiver's address and ensures the integrity of messages by making sure packets are delivered without error, in sequence, and with no loss or duplication.

Accepted Answer

A)   Application layer
B)   Presentation layer
C)   Session layer
D)   Transport layer

Question 10

_____ refers to using a cellular phone outside of a carrier's limited service area.

Accepted Answer

A)   Routing
B)   Teleprocessing
C)   Roaming
D)   Surfing

Question 11

Which of the following statements is true of the types of client/server architectures?

Accepted Answer

A)   An n-tier architecture tests software easily.
B)   An n-tier architecture helps improve network performance.
C)   A two-tier architecture allows easy upgrades of applications.
D)   A two-tier architecture requires minor modifications in case of any changes in application logic.

Question 12

A _____ is a network operating on a radio frequency (RF) , consisting of radio cells, each served by a fixed transmitter.

Accepted Answer

A)   dynamic network
B)   mobile network
C)   mesh network
D)   wired network

Question 13

In the context of communication media,__________provide a physical path along which signals are transmitted, including twisted pair copper cable, coaxial cable, and fiber optics.

Accepted Answer

A)   radiated media
B)   conducted media
C)   wireless media
D)   non-guided media
E)   Select

Question 14

In__________, one node is in charge of selecting the path for all packets.

Accepted Answer

A)   centralized routing
B)   decentralized routing
C)   distributed routing
D)   clashed routing
E)   Select

Question 15

The computers in a local area network (LAN)  are usually connected to the network via a hardware component called a(n)  _____.

Accepted Answer

A)   broadcast radio
B)   adapter card
C)   html address
D)   network protocol

Question 16

The data transfer speed of a wide area network (WAN)  depends on the speed of _____.

Accepted Answer

A)   its interconnections
B)   its application layers
C)   the expansion of the data source
D)   the expansion of the data sink

Question 17

In the context of data communication, which of the following is true of convergence?

Accepted Answer

A)   It changes the path that data takes each time a connection is made.
B)   It allows the transmission of a limited amount of information in a specific period of time.
C)   It requires major network upgrades, because video requires much more bandwidth.
D)   It synchronizes devices before establishing a communication link.

Question 18

Identify an advantage of centralized processing.

Accepted Answer

A)   It helps in exercising tight control over system operations and applications.
B)   It is highly responsive to users' needs.
C)   It has the highest fault tolerance.
D)   It is highly compatible with organizational growth because workstations can be added easily.

Question 19

__________is a set of rules that governs data communication, including error detection, message length, and transmission speed.

Accepted Answer

A)   Throughput
B)   Attenuation
C)   Topology
D)   Protocol
E)   Select

Question 20

_____ are conducted media that can be used for both data and voice transmissions.

Accepted Answer

A)   Terrestrial microwaves
B)   Broadcast radios
C)   Coaxial cables
D)   Satellite dishes

Exam 6: Data Communication: Delivering Information Anywhere and Anytime

__________is a set of rules that governs data communication, including error detection, message length, and transmission speed.

Correct AnswerverifiedShow Answer

In the early days of computer technology, a(n) __________system was justified because data-processing personnel were in short supply, hardware and software were expensive, and only large organizations could afford computers.

Correct AnswerverifiedShow Answer

In__________, one node is in charge of selecting the path for all packets.

Correct AnswerverifiedShow Answer

A _____ is a network operating on a radio frequency (RF) , consisting of radio cells, each served by a fixed transmitter.

Correct AnswerverifiedShow Answer

Ethernet is a standard communication protocol embedded in software and hardware devices used for building a local area network (LAN).

Correct AnswerverifiedShow Answer

A__________is typically used to connect workstations and peripheral devices that are in close proximity.

Correct AnswerverifiedShow Answer

Identify an advantage of centralized processing.

Correct AnswerverifiedShow Answer

In the context of data communication, which of the following is true of convergence?

Correct AnswerverifiedShow Answer

The _____ of the Open Systems Interconnection (OSI) model generates the receiver's address and ensures the integrity of messages by making sure packets are delivered without error, in sequence, and with no loss or duplication.

Correct AnswerverifiedShow Answer

Which of the following statements is true of the types of client/server architectures?

Correct AnswerverifiedShow Answer

Transmission Control Protocol operates at the _____ of the Open Systems Interconnection (OSI) model.

Correct AnswerverifiedShow Answer

_____ refers to using a cellular phone outside of a carrier's limited service area.

Correct AnswerverifiedShow Answer

In the context of communication media,__________provide a physical path along which signals are transmitted, including twisted pair copper cable, coaxial cable, and fiber optics.

Correct AnswerverifiedShow Answer

Compared with a star topology, a hierarchical topology:

Correct AnswerverifiedShow Answer

__________is a voice-grade transmission channel capable of transmitting a maximum of 56,000 bps.

Correct AnswerverifiedShow Answer

_____ are conducted media that can be used for both data and voice transmissions.

Correct AnswerverifiedShow Answer

The__________is a seven-layer architecture for defining how data is transmitted from computer to computer in a network.

Correct AnswerverifiedShow Answer

The computers in a local area network (LAN) are usually connected to the network via a hardware component called a(n) _____.

Correct AnswerverifiedShow Answer

The data transfer speed of a wide area network (WAN) depends on the speed of _____.

Correct AnswerverifiedShow Answer

Narrowband is capable of transmitting a maximum of 60,000 bps.

Correct AnswerverifiedShow Answer

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