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Computer Networking

Computer Networking
What is the default subnet mask for a class A network?

None of these
255.0.0.0
127.0.0.1
255.255.255.0
255.255.255.0.0

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Computer Networking
What is the loopback address?

255.255.0.0
None of these
255.255.255.255.0
255.0.0.0
127.0.0.1

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Computer Networking
Your switch has a port status LED that is alternating between green and amber. What could this indicate?

Nothing; this is normal.
The port is shut down.
The port is experiencing errors.
The port is in STP blocking mode.

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

None of these
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

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Computer Networking
Which of the following is a layer 2 protocol used to maintain a loop-free network?

VTP
STP
CDP
RIP

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Computer Networking
On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?

/28
/30
/29
/27

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