Data Communication and Networking MCQ Questions and Answers - 2

Question: 6

If you use either Telnet or FTP, which is the highest layer you are using to transmit data?

(A) Application

(B) Session

(C) Presentation

(D) Transport

Ans: C

Presentation

Question: 7

Error detection at the data link level is achieved by

(A) Equalization

(B) Bit stuffing

(C) Hamming codes

(D) Cyclic redundancy codes

Ans: D

Cyclic redundancy codes

Question: 8

Which of the following techniques is used for allocating capacity on a satellite channel using fixed-assignment FDM?

(A) Frequency-shift keying

(B) Frequency modulation

(C) Frequency-division multiple access

(D) Amplitude modulation

Ans: C

Frequency-division multiple access

Question: 9

The connection between your computer at home and your local ISP is called _____

(A) The backbone

(B) The home page

(C) The home stretch

(D) The last mile

Ans: B

The home page

Question: 10

Demodulation is the process of

(A) Dividing the high-speed signals into frequency bands

(B) Converting digital signals to analog signals

(C) Converting analog signals to digital signals

(D) Combining many low speed channels into one high speed channel

Ans: C

Converting analog signals to digital signals

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