Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 325

An engineer must implement QoS to prioritize traffic that requires better service throughout the network. The engineer started by configuring a class map to identify the high-priority traffic. Which additional tasks must the engineer perform to implement the new QoS policy?

Answer options

• A. Attach the class map to a policy map that sets the minimum bandwidth allocated to the classified traffic and designates the action to be taken on the traffic.
• B. Attach the class map to a policy map that designates the action to be taken on the classified traffic and then attach the policy map to an interface using a service policy.
• C. Attach the class map to a policy map within a VRF to segregate the high-priority traffic and then attach the policy map to an interface in another VRF.
• D. Create a route map to manipulate the routes that are entered into the routing table and then attach the route map to an interface using a service policy.

Correct answer: B

Explanation

The correct answer is B because it involves linking the class map to a policy map that specifies actions for the identified high-priority traffic, and then applying this policy map to an interface, which is essential for implementing QoS. Option A only focuses on bandwidth allocation without applying it to an interface, C incorrectly suggests using a different VRF, and D discusses route manipulation which is unrelated to implementing QoS.