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.
Residual Error Rate.
Connection release failure probability.

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Computer Networking
Why does the data communication industry use the layered OSI reference model?1. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.2. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.3. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.4. It encourages industry standardization by defining what functions occur at each layer of the model.

3 only
1 and 4
1 only
2 and 3

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Computer Networking
Terminals are used to

provide information for the manager
collect data from the physical system
communicate management decisions to the physical system
None of these
All of these

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