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Computer Science - Networking

Exercise : Networking - Section 7
36.
Videotex is a combination of
television
communication
computer technology
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Which of the following frequency ranges is used for AM radio transmission?
Very Low Frequency : 3 kHz to 30 kHz
Medium Frequency : 300 kHz to 3 MHz
High Frequency : 3 MHz to 30 MHz
Very High Frequency : 30 MHz to 300 MHz
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Baseband is
transmission of signals without modulation
a signal all of whose energy is contained within a finite frequency range
the simultaneous transmission of data to a number of stations
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?
32 Kbps
64 Kbps
8 Kbps
128 Kbps.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
X.21 is
a method of determining which device has access to the transmission medium at any time
a method access control technique for multiple-access transmission media
a very common bit-oriented data link protocol issued by ISO
network access standard for connecting stations to a circuit-switched network
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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