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

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

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Computer Networking
What is route poisoning?

It describes when a router sets the metric for a downed link to infinity.
It sends back the protocol received from a router as a poison pill, which stops the regular updates.
It prevents regular update messages from reinstating a route that has just come up.
It is information received from a router that can't be sent back to the originating router.

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Computer Networking
The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.

Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel
Baseband operates at a standard bit rate, whereas broadband may operate at different rates as needed
Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable
Baseband refers to local area networks, and broadband refers to wide area networks.

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Computer Networking
The data-link layer, in reference to the OSI model, specifies

the virtual circuit interface to packet-switched service
None of these
All of these
data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device

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