4A0-107 試験問題を無料オンラインアクセス

Click the exhibit button below. The service provider has both a VLL (epipe) service and a VPLS, as shown in the diagram below.

At router PE B, traffic arriving from both services will have the same network-queue policy applied.

• A.TRUE
• B.FALSE

Traffic corresponding to a layer-3 VPN arrives at router PE1 marked with a dot1p value of 4. The SDP carrying the traffic uses an MPLS transport tunnel. Given the policies applied on the routers in the diagram, what is the EXP value of packets arriving at router PE2?

• A.3
• B.6
• C.2
• D.5

Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

• A.The parent must have a higher level in the hierarchy.
• B.If no parent is configured, the queue/scheduler is considered orphaned.
• C.Several Tier 1, Tier 2, and Tier 3 schedulers can be defined within a policy.
• D.A queue's parent scheduler must be a Tier-3 scheduler.

A profile-mode queue is configured with MBS = 100 KB, CBS = 50 KB and High-Priority-Only = 40%.
Assume there is no CBS overbooking, and the slope-policy is disabled. If the current queue depth is 70 KB, what will happen to an out-of-profile packet when it is transmitted to the queue?

• A.It will be stored in the reserved buffer space and remain out-of-profile.
• B.It will be stored in the reserved buffer space and become in-profile.
• C.It will be discarded because the high-priority-only threshold has been reached.
• D.It will contend for shared buffer space with packets from other queues.

Which of the following statements describes an advantage of the DiffServ QoS model over the IntServ QoS model?

• A.DiffServ reserves resources dynamically using the RSVP protocol.
• B.DiffServ provides granular differentiation and superior fairness because it processes traffic streams individually.
• C.DiffServ only requires packets to be classified into forwarding classes at the first network hop.
• D.DiffServ is more scalable it treats traffic streams as aggregates.