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Computer Networking

Computer Networking
The number of cross point needed for 10 lines in a cross point switch which is full duplex in nature and there are no self connection is

45
50
100
90

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Computer Networking
The channel in the data communication model can be

radio signals
None of these
postal mail service
All of these
telephone lines

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Computer Networking
Error control is needed at the transport layer because of potential errors occurring _____.

from transmission line noise
from packet losses.
from out-of-sequence delivery
in routers

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Computer Networking
What can cause a problem with communication with a client by name but not by IP address?

Subnet mask
The IP address
Static files such as an LMHOSTS file or a DNS database
The default gateway
None of these

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Computer Networking
Which statement is true regarding classless routing protocols?1. The use of discontiguous networks is not allowed.2. The use of variable length subnet masks is permitted.3. RIPv1 is a classless routing protocol.4. IGRP supports classless routing within the same autonomous system.5. RIPv2 supports classless routing.

1, 3 and 5
2 and 5
3 and 4
None of these

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Computer Networking
The OCR reading unit attached to a POS terminal is called a

light pen
cursor
None of these
All of these
wand

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