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Q1. Which types of multicast distribution tree can PIM-SM use?
A. Only shared tree rooted at the source
B. Only shared tree rooted at the RP
C. Only shortest path tree rooted at the RP
D. Shared tree rooted at the source and shortest path tree switchover
E. Shared tree rooted at the RP and shortest path tree switchover F. Shared tree rooted at the first-hop router and shortest path tree rooted at the RP
Answer: E
Q2. After configuring the tunnel interface as shown in the exhibit, no IPv6 traffic is passed over the IPv4 network.
Which additional configuration is required to pass the IPv6 traffic over the IPv4 network?
A. Configure an IPv4 address on the tunnel0 interface
B. Configure an IPv6 static route to send the required IPv6 traffic over the tunnel0 interface
C. The tunnel destination should be pointing to an IPv6 address instead of an IPv4 address
D. The tunnel0 interface IPv6 address must use the 2002:://16 prefix
Answer: B
Q3. When verifying multicast configurations and operations on Cisco IOS-XR routers, which two statements regarding show commands are correct? (Choose two.)
A. Use the show route ipv4 multicast command to display the incoming and outgoing interface lists for each of the joined multicast groups
B. Use the show pim rpf command to display the RPF information for the RP or for the multicast source
C. Use the show mrib route command to display the (*,G) and (S,G) states information on the router
D. Use the show mrib route command to display the configured static multicast routes
Answer: B,C
Q4. When implementing IP SLA icmp-echo probes on Cisco IOS-XE routers, which two options are available for IPv6? (Choose two.)
A. flow-label
B. hop-limit
C. DSCP
D. traffic-class
E. TOS
Answer: A,D
Q5. Refer to the Cisco IOS-XR show output exhibit.
Which statement is correct?
A. The [ ] indicates the configuration has a problem
B. The [ ] indicates the 10.1.1.1 neighbor peering session has not been established
C. The [ ] indicates the configuration was not inherited from a group
D. The [ ] indicates the configuration has not been committed
E. The [ ] indicates the corresponding BGP peer configuration has a mismatch configuration
Answer: C
Q6. On the PE5 router, which statement Is correct regarding the learned BGP prefixes?
A. The 209.165.201.0/27 prefix is received from the 10.0.1.1 IBGP peer which is a route reflector
B. The 172.16.66.0/24 prefix BGP next-hop points to the route reflector
C. All prefixes learned on PE5 has the default local prefernce value
D. The 209.165.202.128/27 prefix is originated by the 10.0.1.1 IBGP peer
Answer: C #show ip bgp-- check i tag for PE5
Q7. Which two BGP mechanisms are used to prevent routing loops when using a design with redundant route reflectors? (Choose two.)
A. Cluster-list
B. AS-Path
C. Originator ID
D. Community
E. Origin
Answer: A,C
Q8. In Cisco IOS-XR, the maximum-prefix command, to control the number of prefixes that can be installed from a BGP neighbor, is configured under which configuration mode?
A. RP/0/RSP0/CPU0:P2(config-bgp)#
B. RP/0/RSP0/CPU0:P2(config-bgp-af)#
C. RP/0/RSP0/CPU0:P2(config-bgp-nbr)#
D. RP/0/RSP0/CPU0:P2(config-bgp-nbr-af)#
Answer: D
Q9. Which two statements are correct regarding the multicast operations on the router that is the RP? (Choose two.)
A. It is using IGMPv3
B. The IGMP query interval is set to 125 seconds
C. It is using the IPv4 unicast routing table to perform the RPF checks
D. Static multicast routes are configured on the RP
#show ip pim interface #show ip igmp group #show ip pim neighbor
Answer:
Q10. Refer to the EBGP configuration on a PE IOS-XR router exhibit.
After the EBGP configuration, no routes are accepted from the EBGP peer, nor are any routes advertised to the EBGP peer.
What could be the problem?
A. The update-source neighbor configuration command must also be configured
B. The next-hop-self neighbor configuration command must also be configured C. EBGP neighbors must have an inbound and outbound route policy configured
D. An access list is blocking IP protocol 179 packets between the two EBGP peers
E. The maximum-prefix neighbor configuration command must also be configured
Answer: C