Computer Science - Networking

31. 

The loss in signal power as light travels down the fiber is called

A. attenuation
B. propagation
C. scattering
D. interruption
E. None of the above

Answer: Option A

Explanation:

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32. 

Operating system functions may include

A. input/output control
B. virtual storage
C. multiprogramming
D. All of the above
E. None of the above

Answer: Option D

Explanation:

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33. 

Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

A. physical layer
B. data link layer
C. transport layer
D. network layer
E. None of the above

Answer: Option B

Explanation:

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34. 

Which of the following might be used by a company to satisfy its growing communications needs?

A. front-end processor
B. multiplexer
C. controller
D. concentrator
E. All of the above

Answer: Option E

Explanation:

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35. 

Different computers are connected to a LAN by a cable and a/an

A. modem
B. interface card
C. special wires
D. telephone lines
E. None of the above

Answer: Option B

Explanation:

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