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Computer Networking

Computer Networking
Which command is used to upgrade an IOS on a Cisco router?

copy tftp start
config net
copy tftp flash
copy tftp run

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Computer Networking
Which command will clear all the translations active on your router?

clear ip nat translations *
show ip nat statistics
debug ip nat
show ip nat translations

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Computer Networking
A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.

m - 1
2 (2m - 1)
2 (m - 2)
(2m - l)/mJ

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Computer Networking
To set up a bulletin board system you need

All of these
None of these
a personal computer
a smart modem with auto-answer capabilities
a telephone line

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Computer Networking
In a synchronous modem, the digital-to-analog converter transmits signal to the

demodulator
equalizer
terminal
modulator
None of these

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Computer Networking
Which of the following are types of flow control?1. Buffering2. Cut-through3. Windowing4. Congestion avoidance

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

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