Alcatel-Lucent NRS II – IP/MPLS Services — Question 8

Which of the following statements about the consequences of congestion is TRUE?

Answer options

• A. Negative jitter results in a smaller than expected interval between transmitted packets.
• B. Jitter does not have any effect on the quality of video applications.
• C. Serialization delay is not affected by congestion.
• D. Queuing delay is a fixed form of delay in networks.

Correct answer: A

Explanation

Answer A is correct because negative jitter indicates that packets are arriving closer together than anticipated, which can affect transmission. Option B is incorrect since jitter can significantly impact video quality by causing disruptions. Option C is wrong because serialization delay can indeed be influenced by congestion, leading to longer wait times. Option D is false as queuing delay varies depending on network traffic conditions.