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2021 Dec 644-906 download:
Q11. What are the two prerequisites for enabling multicast-only fast reroute (MoFRR) in a network? (Choose two.)
A. There must be an Equal-Cost Multipath (ECMP) topology.
B. IP multicast traffic must use the group address 232.0.0.0/8.
C. PIM-SSM needs to be configured.
D. There must be a valid reverse path back to the multicast source.
Answer: A,D
Q12. Refer to the exhibit.
Based on the configuration, which two statements are true for RTR1? (Choose two.)
A. SNMP traps that are going out on TenGigE 0/0/0/0 will be dropped.
B. SNMP polling that is coming through interface TenGigE 0/0/0/0 will be dropped.
C. The Telnet connection that is coming through MgmtEth0/RSP0/CPU0/0 will be dropped.
D. TACACS traffic that is originating from RTR1 and going through TenGigE 0/0/0/0 will be dropped.
E. The SSH connection that is coming through TenGigE 0/0/0/0 from host 5.5.5.5 will be accepted.
Answer: B,E
Q13. Which command should be used to view only the running configuration of OSPF in Cisco IOS XR Software?
A. show router ospf
B. show run router ospf
C. show configuration ospf
D. show ospf configuration | running-config
E. show ospf process
Answer: B
Q14. How would MPLS Label Distribution Protocol, Graceful Restart be configured on TenGigE 0/0/0/1?
A. Interface Ten0/0/0/1 mpls ip Graceful-restart
B. router ospf interface Ten 0/0/0/1 address-family ipv4 uni mpls ip graceful-restart
C. mpls ldp address-family ipv4 unicast mpls ip graceful-restart
D. mpls ldp graceful restart interface Ten 0/0/0/1
Answer: D
Q15. Which answer best summarizes the difference between p and px images, hfr-mini-p.vm-4.1.1 and hfr-mini-px.vm-4.1.1, respectively?
A. P images can only support legacy hardware, while px images can only support new CRS-3 hardware.
B. P images can use an SMU to operate as x86 images.
C. P images can only support Power PC hardware, while px images can support both Power PC and Intel hardware in the same chassis.
D. P and px images can both be installed on the same ROMMON version.
E. P and px images are roughly the same because they are built to operate on the same system.
Answer: C
Renovate p4s 644-906:
Q16. Which three commands can verify that the route-policy shown below and applied inbound on the BGP neighbor is working as expected for prefix 2.0.0.0/8?
(Choose three.)
A. show bgp 2.0.0.0 | include 356:1000
B. show bgp | include 2.0.0.0
C. show bgp community 356:1000 | include 2.0.0.0
D. show bgp 2.0.0.0
Answer: A,C,D
Q17. What is the correct Cisco IOS XR CLI command to assign a cost of 20 to interface TenGigE 0/1/0/1 for Area 0?
A. config mode, router ospf 1, area 0, interface tengige 0/1/0/1, cost 20
B. config mode, router ospf 1, area 0, interface tengige 0/1/0/1, auto-cost 20
C. config mode, interface tengige 0/1/0/1, ip ospf cost 20
D. config mode, router ospf 1, interface tengige 0/1/0/1, ip ospf cost 20
Answer: A
Q18. Which of the following functions can be configured in the Administration Config mode? (Choose two)
A. BGP routing
B. MPLS Traffic Engineering
C. SDR hostname
D. Secure Shell login
E. nonowner SDR
Answer: C,E
Q19. Which of the following configurations adds a community to routes that are matched on AS criteria?
A. route-policy policy1 if as-path in set1 then set community (356:1000) endif end-policy
B. route-policy policy1 if community in set1 then set community (356:1000) additive endif end-policy
C. route-policy policy1 if as-path in set1 then set community (356:1000) additive endif end-policy
D. route-policy policy1 if as-path neighbor-is set1 then set community (356:1000) additive endif end-policy
Answer: C
Q20. In which mode can you check the power usage of a chassis?
A. in EXEC mode
B. in admin mode
C. in both EXEC and admin mode
D. in ROMMON mode
E. in environmental mode
Answer: B