Alcatel-Lucent NRS II – IP/MPLS Services — Question 21

An egress port scheduler applied to an Ethernet port has a configured bandwidth of 100 Mbps. All frames transmitted on the port are 80 bytes. What is the aggregate transmit bandwidth of all queues using the port scheduler?

Answer options

• A. 100Mbps * 20/(80 + 20) = 20 Mbps
• B. 100Mbps * 80/(80 + 20) = 80 Mbps
• C. 100Mbps
• D. 100+ 100 * 20/(80 + 20) = 120 Mbps

Correct answer: C

Explanation

The correct answer is C because the configured bandwidth for the port scheduler is set at 100 Mbps, which remains the total transmit bandwidth regardless of frame size. Options A and B incorrectly calculate bandwidth based on frame sizes, while D adds additional bandwidth that is not applicable in this scenario.