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Computer Networking

Computer Networking
Which multiplexing technique shifts each signal to a different carrier frequency?

FDM
All of these
synchronous TDM
asynchronous TDM

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Computer Networking
What is the maximum distance running the lowest data rate for 802.11b?

About 300 feet
About 350 feet
About 100 feet
About 175 feet

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Computer Networking
Which of the following allows devices on one network to communicate with devices on another network?

None of these
t-switch
gateway
modern
multiplexer

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Computer Networking
What frequency range is used for microwave communications, satellite and radar?

Low Frequency : 30 kHz to 300 kHz
Extremely High Frequency :30,000 MHz
None of these
Super High Frequency : 3000 MHz to 30000 MHz
Medium Frequency : 300 kHz to 3 MHz

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Computer Networking
What are the data transmission channels available for carrying data from one location to another?

None of these
Voiceband
Broadband
Narrowband
All 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.

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

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