what does the value represents?

If you monitor the Output Queue Length of the network interface, what does the value represents?

A.
It represents the length in packets of the output packet queue.

B.
It is the sum of Frame Bytes/sec and Datagram Bytes/sec.

C.
This value is an estimate of the interface’s current bandwidth in bits per second (bps).

D.
This is the number of outbound packets that could not be transmitted due to system errors.

Explanation:
Output Queue Length value represents the length in packets of the

output packet queue. If this is longer than 3 for sustained periods, delays are being experienced and the bottleneck in the selected network interface should be found and eliminated.
Incorrect Answers
B: The Bytes Total/sec is the sum of Frame Bytes/sec and Datagram Bytes/sec.
C: The Current Bandwidth value is an estimate of the interface’s current bandwidth in bits per second (bps).
D: The Packets Outbound Errors is the number of outbound packets that could not be transmitted due to system errors.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, p. 350