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Computer Networking

Computer Networking
Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?

POP3
FTP
DHCP
SMTP
IMAP

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Computer Networking
What are two purposes for segmentation with a bridge?1. To add more broadcast domains.2. To create more collision domains.3. To add more bandwidth for users.4. To allow more broadcasts for users.

1 only
2 and 4
4 only
2 and 3

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Computer Networking
End-to-end connectivity is provided from host-to-host in:

Network layer
Transport layer
Session layer
Data link layer
None of these

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Computer Networking
In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and

asynchronous port
PC
crossover cable
synchronous port
None of these

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Computer Networking
If you want to disable STP on a port connected to a server, which command would you use?

spanning-tree security
disable spanning-tree
spanning-tree portfast
spanning-tree off

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Computer Networking
How much power (roughly) a light-emitting diode can couple into an optical fiber?

None of these
10 milliwatts
440 microwatts
100 picowatts
100 microwatts

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