Designing Cisco Enterprise Networks (ENSLD) — Question 40

An engineer must design an in-band management solution for a customer with branch sites. The solution must allow remote management of the branch sites using management protocols over an MPLS WAN. Queueing is implemented at the remote sites using these classes:
✑ Class1 equals voice traffic
✑ Class2 equals mission-critical traffic
✑ Class3 equals default traffic
How must the solution prioritize the management traffic over the WAN?

Answer options

• A. Mark the traffic with DSCP EF and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2.
• B. Mark the traffic with DSCP CS1 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to Class3.
• C. Mark the traffic with DSCP CS6 and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2.
• D. Mark the traffic with DSCP CS2 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to Class3.

Correct answer: D

Explanation

The correct answer is D, as marking the management traffic with DSCP CS2 and mapping it to Class2 ensures it is prioritized appropriately given Class2's mission-critical nature. This approach allows the management traffic to receive guaranteed bandwidth while not affecting the higher priority voice traffic in Class1. Options A, B, and C either misclassify the traffic or do not provide the necessary prioritization for management traffic.