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QUESTION1: A Service Provider provides a Layer 2 connection that is based on IEEE 802.1ad. When the customer tries to access a switch at the other side of the link by using SSH, the connection fails. What is the cause of thisfailure? The Service Provider omitted the command l2protocol-tunnelstp. The Service Provider omitted the command l2protocol-tunnelvtp. The Service Provider omitted the command vlan dot1q tagnative. The Service Provider omitted the command spanning-tree bpdufilterenable. Answer:C QUESTION2: In an MPLS VPN environment, the QoS marking over the MPLS backbone must be different from the one that is received from the customer. The forwarding on the egress PE is based on the marking that is set by the ingress PE. Which null label and QoS mode can achievethis? MPLS explicit null with pipemode MPLS implicit null with short pipemode MPLS implicit null with uniformmode MPLS explicit null with uniformmode MPLS explicit null with short pipemode MPLS implicit null with pipemode Answer:A QUESTION3: An engineer is deploying RTBH. What is necessary routing constraint required for successfulimplementation? A. The trigger device must have an iBGP session with all the clusters/route reflectors in the autonomoussystem.
The trigger device must redistribute the static route pointing to a null interface into the IGPprocess. The no ip reachables command must be issued on the PE router interface under attack. The attacker's destination IP address must be routed to a nullinterface. The eBGP sessions need to set the next-hop attribute value to the trigger device loopbackinterface. Answer:A QUESTION4: Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control planeresources? HVR SVR SDR DRP Answer:C QUESTION5: An engineer wants to configure MPLS TE Fast Reroute with link protection on five routers. Which methodology can reduce configuration on the point of the local repair router and successfully complete thetask? Configure a backup tunnel on thePLR. Enable the autotunnel backupfeature. Configure a backup tunnel on the tunnel head endrouter. Enable the autotunnel primaryfeature. Answer:B
QUESTION6: What isNETCONF? It is a standard for installing, manipulating and deleting configuration of network devices. It is a Cisco proprietary solution to help remove the time, cost and manual steps involved in network elementconfiguration. It is data modeling language, to help remove the time, cost and manual steps involved in network elementconfiguration. It is a new recommendation which writes device specific CLI scripts while keeping flexibility in a vendor dependenceenvironment. Answer:A QUESTION7: Which BGP feature improves the convergence and response time to adjacency changes with BGPneighbors? reducing BGP scanner timing to the minimum that issupported BGPMultihop Next-Hop AddressTracking Fast Peering SessionDeactivation TTL SecurityCheck Answer:C QUESTION8: Which are the two purposes of the MPLS label value 1? (Choosetwo.) it is used for MPLS OAMpackets. it indicates an implicit nulllabel. it is used for VPNv6packets. it is used to carry the QoS value in the label stack. it indicates an explicit nulllabel. it indicates a router alertlabel.
Answer: C,F QUESTION9: An engineer wants to configure Fast Reroute in the network. Which methodology eliminates RSVP configuration in thenetwork? Enable LDP FastSynch. Enable IP FastReroute. Enable the auto tunnel primaryfeature. Enable Cisco MPLS TE FastReroute. Enable the auto tunnel backupfeature. Answer:B QUESTION10: What are two advantages of Cisco IOS XR Software over Cisco IOS Software? (Choosetwo.) a configuration that is grouped byinterface a configuration that is grouped byprocess one-stageconfiguration a monolithicOS a two-stageconfiguration Answer: B,E
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