Computer Networking
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?

None of these
8 Kbps
128 Kbps.
64 Kbps
32 Kbps

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Computer Networking
Which of the following is true regarding VTP?

All switches are VTP servers by default.
VTP is on by default with a domain name of Cisco on all Cisco switches.
All switches are VTP transparent by default.
All switches are VTP clients by default.

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Computer Networking
A front-end processor is

a minicomputer that relieves main-frame computers at a computer centre of communications control functions
None of these
a processor in a large-scale computer that executes operating system instructions
a user computer system
preliminary processor of batch jobs.

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