Jitter is causing problems with the VOIP application in the Company network. What causes
network jitter?
Variable queue delays
Packet drops
Transmitting too many small packets
Compression

Answer: A

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.
Note: Jitter in Packet Voice Networks:
Jitter is defined as a variation in the delay of received packets. At the sending side, packets
are sent in a continuous stream with the packets being spaced evenly apart. Due to network
congestion, improper queuing, or configuration errors, this steady stream can become
lumpy, or the delay between each packet can vary instead of remaining constant.