Computer Networking
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

Word processor
Electronic mail
Telex
Facsimile
None of these

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Computer Networking
Demodulation is the process of

dividing the high-speed signals into frequency bands
converting analog signals to digital signals
None of these
converting digital signals to analog signals
combining many low speed channels into one high speed channel

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Computer Networking
Which of the following access lists will allow only HTTP traffic into network 196.15.7.0?

access-list 10 deny tcp any 196.15.7.0 eq www
access-list 100 permit 196.15.7.0 0.0.0.255 eq www
access-list 110 permit ip any 196.15.7.0 0.0.0.255
access-list 100 permit tcp any 196.15.7.0 0.0.0.255 eq www

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Computer Networking
In geosynchronous orbit, satellite

moves faster than the earth's rotation so that it can cover larger portion of earth.
moves simultaneously
remains in a fixed position so that as earth rotates, it can fully cover the earth
None of these
remains in a fixed position related to points on earth

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