QUESTION 61
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
Answer: A
QUESTION 62
What are three BGP configuration characteristics of a multihomed customer that is connected to multiple service providers? (Choose three.)
A. The multihomed customer can use local preference to influence the return traffic from the service providers
B. The multihomed customer announces its assigned IP address space to its service providers through BGP
C. The multihomed customer has to decide whether to perform load sharing or use a primary/backup implementation
D. The multihomed customer must use private AS number
E. The multihomed customer configures outbound route filters to prevent itself from becoming a transit AS
Answer: BCE
QUESTION 63
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
QUESTION 64
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
Answer: B
QUESTION 65
A junior network engineer has just configured a new IBGP peering between two Cisco ASR9K PE routers in the network using the loopback interface of the router, but the IBGP neighborship is not able to be established. Which two verification steps will be helpful in troubleshooting this problem? (Choose two.)
A. Verify that the network command under router BGP is configured correct on each router for announcing the router’s loopback interface in BGP
B. Verify that the ibgp-multihop command under the BGP neighbor is configured correctly on each router
C. Verify that the loopback interfaces are reachable over the IGP
D. Verify that the update-source loopback command under the BGP neighbor is configured correctly on each router
E. Verify that the ttl-security command under the BGP neighbor is configured correctly on each router to enable the router to send the BGP packets using a proper TTL value
F. Verify that the UDP port 179 traffic is not being blocked by an ACL or firewall between the two IBGP peers
Answer: CD
QUESTION 66
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
Answer: D
QUESTION 67
Which multicast routing protocol supports dense mode, sparse mode and bidirectional mode?
A. DVMRP
B. MOSPF
C. PIM
D. MP-BGP
E. MSDP
Answer: C
QUESTION 68
When configuring BFD, the multiplier configuration option is used to determine which value?
A. The retry interval
B. The number of BFD packets that can be lost before the BFD peer is declared “down”
C. The minimum interval between packets accepted from the BFD peers
D. The number of BFD echo packets that will be originated by the router
E. The number of routing protocols that will use BFD for fast peer failure detection
Answer: B
QUESTION 69
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
QUESTION 70
Refer to the Cisco IOS configuration exhibit. Which statement is correct?
A. This configuration is typically configured on the boundary routers within a PIM SM domain to filter out malicious candidate-RP-announce and candidate-RP-discovery packets
B. This configuration is typically configured on the RPs within a PIM-SM domain to restrict the candidate-RP-announce packets
C. This configuration is typically configured on the mapping agents within a PIM-SM domain to restrict the candidate-RP-discovery packets
D. This configuration is typically configured on the MSDP peering routers within a PIM-SM domain to filter out malicious MSDP SA packets
Answer: A
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