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Computer Networking

Computer Networking
Select the wrong data communication system component:

Receiver
Protocol
Medium
Transits

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Computer Networking
You want to run the new 802.1w on your switches. Which of the following would enable this protocol?

Switch(config)# spanning-tree mode rapid-pvst
Switch(config)# spanning-tree mode 802.1w
Switch# spanning-tree mode rapid-pvst
Switch# spanning-tree mode 802.1w

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Computer Networking
Which of the following communications service provides message preparation and transmission facilities?

Teletex
None of these
Teletext
x400
Fax

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Computer Networking
What is the minimum number of wires needed to send data over a serial communication link layer?

6
4
2
None of these
1

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Computer Networking
Which statements are true regarding ICMP packets?1. They acknowledge receipt of a TCP segment.2. They guarantee datagram delivery.3. They can provide hosts with information about network problems.4. They are encapsulated within IP datagrams.

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

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Computer Networking
When a group of computers is connected together in a small area without the help of telephone lines, it is called

Wide area network (WAN)
Local area network(LAN)
Remote communication network (RCN)
Value added network (VAN)
None of these

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