Computer Networking
If digital data rate of 9600 bps is encoded using 8-level phase shift keying (PSK) method, the modulation rate is

3200 bands
1200 bands
4800 bands
None of these
9600 bands

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Computer Networking
Demodulation is a process of

converting analog to digital signals
multiplexing various signals into one high speed line signals
converting digital to analog signals
performing data description.

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Computer Networking
A network administrator views the output from the show ip route command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?

The IGRP route has fewer hops.
IGRP has a lower administrative distance.
IGRP has a faster update timer.
RIP has a higher metric value for that route.

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Computer Networking
Which of the following technique is used for encapsulation?

a technique used in best-effort delivery systems to avoid endlessly looping packets.
None of these
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
All of these

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Computer Networking
The main difference between synchronous and asynchronous transmission is

the clocking is mixed with the data in asynchronous transmission
None of these
the clocking is derived from the data in synchronous transmission
the bandwidth required is different
the pulse height is different.

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