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Computer Networking

Computer Networking
Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?

ISL
DHCP
STP
VTP

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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
500 Kbps
64 Kbps
8 Kbps

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Computer Networking
Maximum data rate of a channel for a noiseless 3-kHz binary channel is

6000 bps
3000bps
1500 bps
None of these

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Computer Networking
In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and

synchronous port
crossover cable
asynchronous port
None of these
PC

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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.

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

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Computer Networking
What type of RJ45 UTP cable is used between switches?

Crossover with a CSU/DSU
Straight-through
Crossover with a router in between the two switches
Crossover cable

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