Question Discussion & Solution

MCQ

Which of the following network access standard is used for connecting stations to a circuit-switched network?

X.3

X.21

X.25

X.75

None of the above

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Internet-like networks within an enterprise.

Intranets

Switching alternating

Inter organizational networks

Extranets

Discussion

MCQ

The data-link layer, in reference to the OSI model, specifies

data link procedures that provide for the exchange of data via frames that can be sent and received

the interface between the X.25 network and packet mode device

the virtual circuit interface to packet-switched service

All of the above

None of the above

Discussion

MCQ

Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology

Ethernet, because it is cabled using fiber-optic cable

Token-Ring, because it uses a MAU

Ethernet, because it can be set up with most topologies and can use multiple transfer speeds

Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies

Discussion

MCQ

A high speed communication equipment typically would not be needed for

E-mail

Transferring large volume of data

Supporting communication between nodes in a LAN

All of these

Discussion

MCQ

Which of the following statements is correct?

Terminal section of a synchronous modem contains the scrambler

Receiver section of a synchronous modem contains the scrambler

Transmission section of a synchronous modem contains the scrambler

Control section of a synchronous modem contains the scrambler

None of the above

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History and Generations

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Digital Logic Gate

Number System

Computer Codes

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Disk Operating System (DOS)

Database Systems

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