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Computer Networking

Computer Networking
In cyclic redundancy checking what is the CRC?

the divisor
the remainder
None of these
the quotient
the dividend

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Computer Networking
You have a network ID of 134.57.0.0 with 8 subnets. You need to allow the largest possible number of host IDs per subnet. Which subnet mask should you assign?

255.255.224.0
255.255.248.0
255.255.255.255
255.255.252.0
255.255.240.0

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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
0.991
None of these
0.999
0.003

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Computer Networking
What multicast addresses does RIPng use?

FF02::9
FF02::5
FF02::6
FF02::A

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Computer Networking
Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?1. Switch2. NIC3. Hub4. Repeater5. RJ45 transceiver

1 only
All of these
5 only
1 and 3
3 and 4

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Computer Networking
What part of 192.168.10.51 is the Network ID, assuming a default subnet mask?

192.168.10
None of these
51
0.0.0.5
192

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