You need to troubleshoot some problems in the Company VOIP network associated with
jitter. What is the cause of jitter?

A.
Packet drops

B.
Transmitting too many small packets

C.
Variable queue delays

D.
Compression

E.
None of the other alternatives apply

Explanation:
Delay variation or jitter is the difference in the delay times of consecutive packets. A jitter
buffer is often used to smooth out arrival times, but there are instantaneous and total limits
on buffering ability. Any type of buffering used to reduce jitter directly increases total network
delay. In general, traffic requiring low latency also requires a minimum variation in latency.
As a design rule, voice networks cannot cope with more than 30 ms of jitter. Jitter in excess
of 30 ms will result in degraded audio performance. Excessive jitter in a streaming video
environment will result in jerky motion, loss of video quality or loss of video.