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Computer Networking

Computer Networking
Which of the following is a layer 2 protocol used to maintain a loop-free network?

RIP
CDP
VTP
STP

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Computer Networking
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?

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

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Computer Networking
Select the wrong data communication system component:

Receiver
Medium
Protocol
Transits

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Computer Networking
One important characteristic of the hub architecture of ARC-net is

access control and addressing
alternative routing
multiple virtual networks
None of these
directionalized transmission

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Computer Networking
Which command will display the CHAP authentication process as it occurs between two routers in the network?

show interface serial 0
debug chap authentication
show chap authentication
debug ppp authentication

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Computer Networking
If you delete the contents of NVRAM and reboot the router, what mode will you be in?

Setup mode
Global mode
NVRAM loaded mode
Privileged mode

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