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Computer Networking

Computer Networking
Which of the following is used for modulation and demodulation?

multiplexer
modem
gateway
None of these
protocols

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Computer Networking
The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?

Host-to-Host
Application
Network Access
Internet

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Computer Networking
Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?1. 172.16.1.1002. 172.16.1.1983. 172.16.2.2554. 172.16.3.0

1 only
3 and 4 only
2 and 5 only
2 and 3 only
None of these

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Computer Networking
What is the first octet range for a class A IP address?

192 - 223
192 - 255
128 - 191
1 - 127
1 - 126

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Computer Networking
What frequency range is used for FM radio transmission?

Very Low Frequency : 3 kHz to 30. kHz
Low Frequency : 30 kHz to 300 kHz
None of these
Very High Frequency : 30 MHz to 300 MHz
High Frequency : 3 MHz to 30 MHz

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

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

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