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Computer Science - Networking

Exercise : Networking - Section 4
21.
A decrease in magnitude of current, voltage, a power of a signal in transmission between points, is known as
Attenuation
Amplitude
Aloha
Carrier
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The term "remote job entry" relates to
batch processing
realtime processing
transaction processing
distributed processing
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Which of the following performs modulation and demodulation?
fiber optic
satellite
coaxial cable
modem
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Data communications monitors available on the software market include
ENVIRON/1
TOTAL
BPL
Telenet
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Which of the following statement is correct?
A spin stabilized satellite used solar cells mounted on a cylinder body that continuously rotates so that 40 a time and it also uses gyroscopic action of a spinning satellite to maintain its orientation towards the earth and the sun.
A spin stabilized satellite uses solar panels whose cells are continually oriented toward the sun
Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations.
satellite transponders use a single frequency for reception and transmission from one point on earth to another
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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