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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