JNCIP-SP: Juniper Networks Certified Professional – Service Provider (2023) — Question 3

A packet is received on an interface configured with transmission scheduling. One of the configured queues is exceeding the allocated bandwidth.
In this scenario, which two actions will be taken by default on a Junos device? (Choose two.)

Answer options

• A. The exceeding queue will be considered to have negative bandwidth credit.
• B. The excess traffic will be discarded.
• C. The exceeding queue will be considered to have positive bandwidth credit.
• D. The excess traffic will use bandwidth available from other queues.

Correct answer: A, D

Explanation

When a queue exceeds its allocated bandwidth, it is assigned a negative bandwidth credit, indicating that it is using more than allowed. Additionally, the excess traffic can utilize bandwidth from other queues, allowing for more efficient handling of data without immediate loss, which is why options A and D are correct.