642-887 試験問題を無料オンラインアクセス

Which option is a Cisco-recommended congestion management or queuing method for real-time traffic for voice and video?

• A.LLQ
• B.CB-WFQ
• C.PQ
• D.WFQ

Which four pieces of information are stored for each prefix in the LFIB? (Choose four.)

• A.local label
• B.next-hop IP address
• C.Layer 2 header rewrite information
• D.outgoing label
• E.incoming interface
• F.outgoing interface

Which two network devices are trusted endpoints in a network? (Choose two.)

• A.video endpoint
• B.IP phone
• C.wireless clients
• D.PC

What is the purpose of the BGP table map QoS marking action in the QPPB implementation?

• A.to mark packets with QoS marking based on source
• B.to mark with QoS marking the prefixes that only EBGP peers receive
• C.to mark packets with QoS marking based on destination
• D.to mark with QoS marking the prefixes that BGP peers receive

An engineer is allocating a determined amount of bandwidth to a customer Cisco MPLS TE tunnel to guarantee its availability on a 24/7 SLA type. Which option must be configured to make sure the customer is able to use the bandwidth agreed on the SLA?

• A.RSVP that guarantees bandwidth availability end-to-end
• B.Cisco MPLS TE tunnel to signal the bandwidth required
• C.a QoS policy to reinforce the RSVP bandwidth reservation
• D.overprovisioning to guarantee bandwidth