642-887 무료 덤프문제 온라인 액세스

Which three fields must be the same in an IPv6 header to consider different packets on the same flow?
(Choose three.)

• A.transport protocol type
• B.source port
• C.destination port
• D.destination address
• E.flow label
• F.source address

Which statement describes the QoS behavior between P and PE routers of an MPLS provider network for an L3VPN service?

• A.Classification of customer traffic is handled by the P router.
• B.The PE function cannot map DSCP markings to MPLS EXP bits.
• C.The PE function honors DSCP markings set by the CE.
• D.The customer and provider must agree on DSCP classification and traffic priorities.

You are troubleshooting an LDP neighbor that is down between a PE device and two uplink P devices. You enter the cormmand show mpls ldp parameters.
Which type of timer does this command reveal?

• A.locally configured
• B.final negotiated
• C.recovery
• D.reconnect

An engineer must automatically copy the IP Prec/DiffServ PHB marking to the EXP bits of the imposed MPLS label on the ingress PE, as well as the MPLS EXP bits to the IP Prec/DiffServ of the egress PE. Which MPLS QoS model is suitable for this requirement?

• A.uniform model
• B.uniform pipe model
• C.short-pipe model
• D.pipe model

A network engineer sees that no LDP are allocated to prefixes in the LFIB. IP connectivity is between the LDP source interface, and MPLS is properly configured on the appropriate interface. What Is the issue?

• A.IS-IS is not enabled.
• B.TDP is not enabled.
• C.Cisco Express Forwarding is not enabled.
• D.RSVP is not enabled.