CCDE: Cisco Certified Design Expert (Practical) — Question 33

A financial company requires that a custom TCP-based stock-trading application be prioritized over all other traffic for the business due to the associated revenue. The company also requires that VoIP be prioritized for manual trades. Which directive should be followed when a QoS strategy is developed for the business?

Answer options

• A. Interleave the custom application with other TCP applications in the same CBWFQ queue
• B. Allow VoIP and the custom application to share the same priority queue
• C. Avoid placing the custom application in a CBWFQ queue that contains other UDP applications
• D. The custom application and VoIP must be assigned their own separate priority queue

Correct answer: D

Explanation

The correct answer is D because both the custom TCP-based stock-trading application and the VoIP traffic must have their own separate priority queues to ensure they receive the necessary bandwidth and low latency required for optimal performance. Options A and B compromise the priority needed for each service by combining them, while option C is irrelevant as it focuses on UDP applications, which are not related to the requirements of the TCP-based application.