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Computer Networking

Computer Networking
Which of the following provide inter-switch VLAN communication? 1. ISL 2. VTP 3. 802.1Q 4. 802.3Z

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

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Computer Networking
A communications device that combines transmissions from several I/O devices into one line is a:

full-duplex line
concentrator
None of these
multiplexer
modifier

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Computer Networking
Which of the following describe the DHCP Discover message?1. It uses FF:FF:FF:FF:FF:FF as a layer 2 broadcast.2. It uses UDP as the Transport layer protocol.3. It uses TCP as the Transport layer protocol.4. It does not use a layer 2 destination address.

1 only
3 and 4
1 and 2
4 only

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Computer Networking
Switching at the network layer in the Internet uses the datagram approach to:

Packet switching
Message switching
IP switching
Circuit switching

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Computer Networking
When using the loopback address, if TCP/IP is installed correctly, when should you receive a response?

Within two minutes
Immediately
Only if the address fails
After the next host comes online
None of these

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Computer Networking
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

Facsimile
Telex
None of these
Word processor
Electronic mail

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