Online Access Free 642-642 Exam Questions

Which three characteristics best describe a converged network? (Choose three.)

• A.the use of overprovisioning to ensure voice quality
• B.the random dropping of lower priority traffic to ensure that high-priority traffic gets through
• C.prioritization and congestion management to ensure voice quality
• D.the potential for poor voice quality due to other traffic
• E.the separation of the voice and data networks into two networks to ensure voice quality
• F.the use of a separate high-speed link for bulk traffic to avoid interference with other traffic

Which QoS mechanism adds IP Precedence information for prefixes into the FIB table?

• A.QoS pre-classify
• B.AutoQoS
• C.LLQ
• D.Class-Based WRED
• E.QPPB
• F.Class-Based Marking

SIMULATION - LAB

• A.Please click console

DRAG DROP
Drop

Correct Answer:

According to the best practices, in a service provider network, which statement is true as related to the QoS policy that should be implemented on the inbound provider (P) to provider (P) router link?

• A.Class-based marking should be implemented because it will be needed for the class-based queuing that will be used on the P router output.
• B.Because traffic should have already been policed and marked on the upstream ingress PE router, no input QoS policy is needed on the P to P link.
• C.Traffic policing should be implemented to rate-limit the ingress traffic into the P router.
• D.In the DiffServ model, all ingress and egress QoS processing are done at the network edge (for example, PE router), so no input or output QoS policy will be needed on the P to P link.