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Computer Networking

Computer Networking
Which of the following is an IEEE standard for frame tagging?

802.3Z
802.1Q
ISL
802.3U

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Computer Networking
Which of the following are true regarding OSPF areas?1. You must have separate loopback interfaces configured in each area.2. The numbers you can assign an area go up to 65,535.3. The backbone area is also called area 0.4. If your design is hierarchical, then you don't need multiple areas.5. All areas must connect to area 0.

3, 4 and 5
3 and 4 only
1 and 2 only
1 only

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Computer Networking
Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.

3, 3, 2, none
3, 3, 1, 7
3, 2, 1, 7
3, 2, 1, none
All of these

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Computer Networking
Layer 2 switching provides which of the following?1. Hardware-based bridging (ASIC)2. Wire speed3. Low latency4. Low cost

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

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Computer Networking
A noiseless 3 KHz Channel transmits bits with binary level signals. What is the maximum data rate?

6 Kbps
3 Kbps
24 Kbps.
12 Kbps

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Computer Networking
Which of the following provides a storage mechanism for incoming mail but does not allow a user to download messages selectively?

DHCP
SMTP
IMAP
POP3
2

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