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Q21. What is the PPMP label used for?
A. for the ingress replication model with BIDIR-PIM in an overlay model
B. only for the inter-AS mVPN models that use mLDP
C. for the partitioned mVPN model with PIM signaling in an overlay model
D. only for unicast over MPLS VPN
E. for all the default MDT and mVPN models
Q22. Refer to the exhibit.
A service provider has multiple time sources in the environment for NTP. The time source at 10.0.4.1 is intended to be seen as a primary time source. What command can be issued on PE4 to fix the configuration, ensuring the proper NTP source will be issued?
A. ntp peer 10.0.4.1
B. ntp peer 10.0.4.1 prefer
C. ntp server 10.0.4.1 source GigabitEthernet0/0
D. ntp server 10.0.4.1 prefer
Q23. In an end-to-end Layer 2 service, which technology provides the capability to detect, verify, isolate, and report faults across a provider network?
A. carrier detect
Q24. Refer to the exhibit.
The prefix 10.1.1.64/28 should be advertised to the PE router, yet the prefix is not being received by the PE. Which configuration should be applied on CE in order to fix this issue?
A. jp prefix-list ROUTES_TO_SP seq 1 permit 10.1.1.64/28
B. router bgp 65000 no network 10.1.1.64 mask 255.255.255.240 network 10.1.1.128 mask 255.255.255.128
C. ip prefix-list ROUTES_TO_SP permit 10.1.1.64/28
D. router bgp 65000 no network 10.1.1.64 mask 255.255.255.240 network 10.1.1.0 mask 255.255.255.0
Q25. Refer to the exhibit .
A network engineer is troubleshooting a packet over SONET connection between Router A and Router B. What is causing the line protocol to be down?
A. The keepalive must be set on both sides
B. The POS CRC must be set on both sides.
C. There is an encapsulation mismatch
D. There is an MTU mismatch.
Q26. Refer to the exhibit.
Which piece of information can be derived from this Cisco IOS XR route policy?
A. If the destination is 227.0 0 3 or 227 0 0 13 the default table will be used for reverse path forwarding
B. If the destination ranges between 227.0 0.3 and 227 0.0.13. the IPv4 unicast table will be used for reverse path forwarding
C. If the destination is 22.214.171.124 or 227.0 0.13, the IPv4 unicast table will be used for reverse path forwarding
D. If the destination ranges between 126.96.36.199 and 188.8.131.52. the multicast default table will be used for reverse path forwarding
Q27. Refer to the exhibit.
Why is RC unable to receive prefix 184.108.40.206/32?
A. On RB. neighbor 10.10.12.1 send-community is not configured.
B. On RA, ip bgp-community new-format is not configured.
C. On RB. neighbor 10.10.23.3 send-community is not configured.
D. On RA, neighbor 10.10.12.2 send-community is not configured.
E. On RC. ip bgp-community new-format is not configured.
F. On RB, ip bgp-community new-format is not configured
G. On RB. neighbor 10.10.23.3 next-hop-self is not configured.
Q28. Refer to the exhibit. The Service Provider does not have IPv6 support in the core, however it does have MPLS support. Customer requires IPv6 connectivity in all sites including Internet access. Without a requirement to create VRF, which method is preferred to support IPv6 traffic between these sites?
Q29. Refer to the exhibit.
When a traceroute is performed from a PC behind R2, the next hop on R1 for IPv4 is 10.0.1.2, and for IPv6 it is 2001:DB8:2:2. What is causing thus behavior?
A. GigabitEthernet2/1 has a Level 1-only adjacency. This causes it to be the preferred path for the IPv6 packets.
B. When SPF ran on R2, it calculated two equal paths to R1. It was a coincidence that than the packets choose different paths.
C. Multitopology is enabled on R2, which causes the IPv6 packets to use a different path than the IPv4 packets.
D. 2001:DB8:2::2 is on a Gigabit Ethernet interface. Because its speed is higher than Fast Ethernet, the IS-IS metric is preferred.
Q30. The following MPP configuration is applied on RA router: RP/0/RSP0/CPU0:RA#sh running-config control-plane
interface TenGigE 0/0/0/0
allow SSH peer
address ipv4 220.127.116.11/8
Which two pieces of information are correct in regards to management traffic on RA router? (Choose two)
A. SNMP traps going out on TenGigE 0/0/0/0 interface are dropped.
B. SNMP polling coming through TenGigE 0/0/0/0 interface are dropped.
C. Telnet connections coming through MgmtEth0/RSP0/CPU0/0 interface are accepted.
D. SSH connections coming through TenGigE 0/0/0/0 interface from 18.104.22.168 host are accepted.
E. TACACS traffic going through TenGigE 0/0/0/0 interface are dropped.