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Computer Networking

Computer Networking
Number of bits per symbol used in Baudot code is

9
5
8
None of these
1

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Computer Networking
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.

None of these
P I (K + 1)
KIK (1 + F)
1/ (1 - F)
K I (K - P)

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Computer Networking
Which statement(s) about IPv6 addresses are true?1. Leading zeros are required.2. Two colons (::) are used to represent successive hexadecimal fields of zeros.3. Two colons (::) are used to separate fields.4. A single interface will have multiple IPv6 addresses of different types.

1, 3 and 4
All of these
1 and 3
2 and 4

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Computer Networking
For connecting modem, a computer must be equipped with a port that conforms to the RS-232 standard of the Electronic Industries Association of America. What do the letters 'RS' stand for?

Registered source
Random sequence
Recognised standard
Recommended standard
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.

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

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Computer Networking
Which of the following would be good reasons to run NAT?1. You need to connect to the Internet and your hosts don't have globally unique IP addresses.2. You change to a new ISP that requires you to renumber your network.3. You don't want any hosts connecting to the Internet.4. You require two intranets with duplicate addresses to merge.

3 only
2 and 4
1, 2 and 4
All of these

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