Computer Networking
Which of the following refers to the terms "residual error rate"?

signal to noise ratio divided by the ratio of energy per bit to noise per hertz
the number of bit errors per twenty four hours of continuous operation on an asynchronous line
None of these
the probability that one or more errors will be detected when an error detection mechanism is used
The probability that one or more errors will be undetected when an error detection scheme is used

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
HDLC (High-level Data Link Control) is

a method of determining which device has access to the transmission medium at any time
network access standard for connecting stations to a circuit-switched network
None of these
a method access control technique for multiple-access transmission media
a very common bit-oriented data link protocol issued by ISO.

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
What is route poisoning?

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

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
You type debug ip rip on your router console and see that 172.16.10.0 is being advertised to you with a metric of 16. What does this mean?

The route is queued at 16 messages a second.
The route is 16 hops away.
The route is inaccessible.
The route has a delay of 16 microseconds.
They will all load-balance.

ANSWER DOWNLOAD EXAMIANS APP