Designing Cisco Enterprise Networks (ENSLD) — Question 105
An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes based on predefined business requirements. The design must also utilize the differentiated services code points as the QoS priority descriptor value and support at least 10 levels of classification. Which QoS technology should the engineer include in the design?
Answer options
- A. RSVP
- B. DiffServ
- C. Best Effort
- D. InterServ
Correct answer: B
Explanation
The correct answer is DiffServ because it is designed to manage traffic by providing different levels of service based on predefined criteria and supports multiple classification levels. RSVP and InterServ are more suited for applications requiring strict resource reservation and quality guarantees, while Best Effort does not provide any QoS guarantees.