Online Access Free 642-785 Exam Questions

What problem could occur when applying this policy map on CE?
policy-map CE-SP-MODEL class VOIP priority class BROADCAST-VIDEO priority class SP-CRITICAL-DATA bandwidth percent 40 random-detect exp 3 15000 packets 45000 packets class class-default random-detect exp 1 2500 packets 7500 packets random-detect exp 0 1500 packets 10500 packets

• A.Default class does not have bandwidth assigned.
• B.All traffic is classified and treated properly, no issues occur.
• C.No bandwidth or policing is configured for voice and video traffic, and other traffic could be impacted.
• D.Only one priority queue is allowed per policy.

DRAG DROP
Drag and drop mechanisms on the left to their corresponding uses on the right. Some mechanisms may not used.

Correct Answer:

When is a best-effort QoS policy most appropriate?

• A.when the customer plans to transport data from no more than one multimedia application
• B.when the customer will only transport delay-tolerant data
• C.when the CE is self-managed and the customer provides adequate QoS marking
• D.when the customer has high bandwidth access to the network

Where would you apply WRED to avoid congestion and poor QoS from oversubscription of the network?

• A.wherever there is a potential bottleneck and most traffic is UDP
• B.wherever there is a potential bottleneck and most traffic is TCP
• C.wherever there is a potential bottleneck and traffic is delay-intolerant
• D.wherever there is a potential bottleneck
• E.wherever there is a potential bottleneck and most traffic is voice

Refer to the exhibit.

Which two statements are correct? (Choose two.)

• A.The policy map cust-policy specifies an average traffic shaping rate of 384 kb/s for the cust1 class and assigns the service policy cust1-classes to the cust1 class.
• B.Within the cust2-classes policy, the gold class is guaranteed 30 percent of the S3/2 interface bandwidth. Silver is guaranteed 15 percent of the S3/2 interface bandwidth. Bronze is guaranteed 10 percent of the S3/2 interface bandwidth.
• C.This example is a hierarchical MQC example, and the cust-policy is the child policy.
• D.Within the cust1-classes policy, the gold class is guaranteed 50 percent of the bandwidth. Silver is guaranteed 20 percent of the bandwidth, and bronze is guaranteed 15 percent of the bandwidth.
• E.The traffic class cust2 is ensured a bandwidth of 51.2 kb/s.
• F.This example queues the traffic into different CBWFQ classes before the aggregate traffic is shaped.