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Computer Networking

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

config net
copy tftp start
copy tftp run
copy tftp flash

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Computer Networking
What is the main reason the OSI model was created?

So different networks could communicate.
To create a layered model larger than the DoD model.
So application developers can change only one layer's protocols at a time.
So Cisco could use the model.

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Computer Networking
The ________ measures the number of lost or garbled messages as a fraction of the total sent in the sampling period.

Transfer Failure Probability.
Connection establish.
Connection release failure probability.
Residual Error Rate.

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Computer Networking
A data communications system has:

7 components
5 components
6 components
4 components

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Computer Networking
Error detection at the data link level is achieved by

Equalization
Hamming Code
Bit Stuffing
Cyclic Redundancy Code

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Computer Networking
What are the decimal and hexadecimal equivalents for the binary number 10110111?

183/B7
69/0x2102
83/0xC5
173/A6

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