Computer Science - Networking

6. 

We can receive data either through our television aerial or down our telephone lines and display this data on our television screen. What is the general name given to this process?

A. Viewdata
B. Teletext
C. Telesoftware
D. Videotex
E. None of the above

Answer: Option D

Explanation:

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7. 

ASK, PSK, FSK, and QAM are examples of _____ encoding.

A. digital-to-digital
B. digital-to-analog
C. analog-to-analog
D. analog-to-digital

Answer: Option B

Explanation:

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8. 

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

A. data link procedures that provide for the exchange of data via frames that can be sent and received
B. the interface between the X.25 network and packet mode device
C. the virtual circuit interface to packet-switched service
D. All of the above
E. None of the above

Answer: Option A

Explanation:

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9. 

What function does a serial interface perform in data communication?

A. Converts serial data into audio signals
B. Converts analog signals into digital signals
C. Converts parallel data into a stream of bits
D. Decodes incoming signals into computer data
E. None of the above

Answer: Option C

Explanation:

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10. 

You need to determine whether IP information has been assigned to your Windows NT. Which utility should you use?

A. NBTSTAT
B. NETSTAT
C. IPCONFIG
D. WINIPCFG
E. PING

Answer: Option C

Explanation:

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