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Computer Networking

Computer Networking
If you get both local and remote echoes, every character you type will appear on the screen

three times
None of these
never
twice
once

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Computer Networking
You have a network with a subnet of 172.16.17.0/22. Which is the valid host address?

172.16.20.1 255.255.254.0
172.16.17.1 255.255.255.252
172.16.18.255 255.255.252.0
172.16.0.1 255.255.240.0

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Computer Networking
Which protocol does DHCP use at the Transport layer?

IP
UDP
ARP
TCP

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Computer Networking
The standard suit of protocols used by the Internet, intranets, extranets, and some other networks.

Internetwork processor
Hybrid hub
TCP/IP
Open Systems
Protocol

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Computer Networking
You are unsuccessful in telnetting into a remote device. What could the problem be?1. IP addresses are incorrect.2. Access control list is filtering Telnet.3. There is a defective serial cable.4. The VTY password is missing.

3 only
2 and 4 only
All of these
1 only

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Computer Networking
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to

0.009
0.003
0.991
0.999
None of these

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