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Computer Networking

Computer Networking
Which command is used to upgrade an IOS on a Cisco router?

copy tftp start
copy tftp run
config net
copy tftp flash

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Computer Networking
What are reasons for creating OSPF in a hierarchical design?1. To decrease routing overhead2. To speed up convergence3. To confine network instability to single areas of the network4. To make configuring OSPF easier

1, 2 and 3
2, 3 nd 4
3 and 4
3 only

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Computer Networking
In CRC there is no error if the remainder at the receiver is _____.

the quotient at the sender
equal to the remainder at the sender
None of these
zero
nonzero

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Computer Networking
A 4 KHz noiseless channel with one sample every 125 per sec, is used to transmit digital signals. Find the bit rate (bits per second) that are sent, if CCITT 2.048 Mbps encoding is used.

32 Kbps
None of these
8 Kbps
64 Kbps
500 Kbps

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Computer Networking
Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question.

192.168.10.126
192.168.10.142
192.168.10.143
192.168.10.66
192.168.100.254

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Computer Networking
What device separates a single network into two segments but lets the two segments appear as one to higher protocols?

Bridge
Router
Gateway
Switch

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