The Updated Guide To 642-885 practice test

Q1. Refer to the exhibit. 

Which three statements are correct regarding the Cisco IOS-XR configuration? (Choose three.) 

A. This router, acting as the RP mapping agent, will send RP announcement messages to the 

224.0.1.40 group 

B. This router, acting as the RP mapping agent, will send RP discovery messages to the 

224.0.1.39 group 

C. This router is the RP mapping agent only for the 224.11.11.11 and 224.99.99.99 multicast groups 

D. This router is a candidate PIM-SM RP for the 224.99.99.99 multicast group 

E. This router is a candidate PIM-BIDIR RP for the 224.11.11.11 multicast group 

F. IGMPv3 is enabled on all interfaces 

G. Other routers will recognize this router as the RP for all multicast groups with this router loopback 0 IP address 

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Q2. When implementing interdomain multicast routing, which mechanism can be used to advertise multicast sources in one domain to the other domains, allowing the RPs to build interdomain multicast distribution trees? 

A. Multiprotocol BGP 

B. PIM 

C. MSDP 

D. Auto RP 

E. BSR 

F. MLD 

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Q3. With PIM-SM operations, which four pieces of information are maintained in the multicast routing table for each (*,G) or (S,G) entry? (Choose four.) 

A. RPF Neighbor 

B. RP Set 

C. Incoming Interface 

D. OIL 

E. DF priority 

F. PIM SM state flags 

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Q4. RAG DROP Answer: 

Manually configured tunnel - 6RD , GRE Automatic Tunnel - 6 to 4 , IPV6-in-IPV4 

Q5. On the PE, which two statements are correct regarding the(192.168.156.60,224.1.1.1) entry? (Choose two,) 

A. The RPF neighbor points towards the RP 

B. The RPF neighbor is reachable overthe Gi0/0/0/1 interface 

C. The OIL contains the GiO/0/0/0 interface 

D. The IIL is Null 

Q6. Refer to the exhibit for the outputs from an ASR9K router. 

Why did the ping fail? 

A. The ping command is missing the ipv6 option: ping ipv6 2001:db8:10:1:10::1/128 

B. There is a problem with the IS-IS configurations 

C. The fe80::eab7:48ff:fe2c:a180 next-hop is not reachable 

D. The prefix length should be removed from the IPv6 address in the ping command: ping ipv6 2001:db8:10:1:10::1 

E. IPv6 is not enabled on the Gi0/0/0/0 interface 

F. The IPv6 neighbor discovery protocol is not enabled on the Gi0/0/0/0 interface 

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Q7. Refer to the exhibit. 

The following multicast IP addresses map to which multicast MAC address? 

A. 01:00:5E:8A:00:01 

B. 01:00:5E:0A:00:01 

C. 01:00:5E:7A:00:01 

D. 01:00:5E:05:00:01 

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Q8. When implementing high-availability stateful switchover BGP routing, in which situation would Cisco NSR be required? 

A. On the PE routers connecting to the CE routers which are not NSF aware or are not NSF capable 

B. On the PE routers connecting to the CE routers which support graceful restart 

C. On the PE routers connecting to the CE routers which are incapable of performing stateful switchover operations because the CE routers are only NSF aware but not NSF capable 

D. On the PE routers connecting to the CE routers which are incapable of performing stateful switchover operations because the CE routers are only NSF capable but not NSF aware 

E. On the service provider core P routers which are also NSF aware 

F. On the service provider core P routers which are also NSF capable 

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Q9. What is enabled by default on Cisco IOS-XR routers and cannot be disabled? 

A. SSH server 

B. Multicast routing 

C. IPv4 and IPv6 CEF 

D. IPv6 routing 

E. CDP 

F. BFD 

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Q10. Refer to the Cisco IOS-XR show output exhibit. 

Which two statements are correct? (Choose two.) 

A. The RPF neighbor 192.168.11.1 is the path towards the RP for the 224.1.1.1 multicast group 

B. The RP for the 224.1.1.1 multicast group is reachable over the Gi0/0/0/0 interface 

C. This router is the RP for the 224.1.1.1 multicast group 

D. Incoming 224.1.1.1 multicast group traffic will be sent out through the Gi0/0/0/0 interface 

E. Incoming 224.1.1.1 multicast group traffic will be sent out through the Gi0/0/0/2 interface 

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