Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) v1.0
Question 1
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
Question 2
How would you configure IS-IS process TEST to support MPLS Traffic Engineering extensions on level 1 and 2 that are intending to run a tunnel across TenGigE
0/0/0/0?
- A. mpls ldp traffic-eng level-1-2 mpls traffic-eng router-id 1.1.1.1 router isis TEST interface Ten 0/0/0/0 address-family ipv4 unicast
- B. router isis TEST net 49.0001.0001.0001.0001.00 address-family ipv4 unicast metric-style wide mpls traffic-eng router-id 1.1.1.1 mpls traffic-eng level-1-2 interface Ten 0/0/0/0 address-family ipv4 unicast
- C. router isis TEST net 49.0001.0001.0001.0001.00 address-family ipv4 uni metric-style wide interface Ten 0/0/0/0 address-family ipv4 unicast mpls traffic-eng router-id 1.1.1.1 mpls traffic-eng level-1-2
- D. mpls ldp router isis TEST interface Ten 0/0/0/0 address-family ipv4 unicast mpls traffic-eng level-1-2 mpls traffic-eng router-id 1.1.1.1
Answer : B
Question 3
When running MPLS Traffic Engineering with Cisco IOS XR Software, which three criteria can be seen when the show mpls traffic-eng tunnels command is executed on a midpoint router? (Choose three.)
- A. tunnel role
- B. TE metric
- C. tunnel ID
- D. physical bandwidth
- E. incoming and outgoing label
Answer : ACE
Question 4
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 : AD
Question 5
Which CLI command can be used to display interfaces statistics?
- A. RP/0/RSP1/CPU0:ASR9006#monitor interface
- B. RP/0/RSP1/CPU0:ASR9006#show interfaces summary
- C. RP/0/RSP1/CPU0:ASR9006#show interfaces statistics | inc errors
- D. RP/0/RSP1/CPU0:ASR9006#show interfaces accounting | inc errors
- E. RP/0/RSP1/CPU0:ASR9006(admin)#show flow platform producer statistics location 0/0/CPU0
- F. RP/0/RSP1/CPU0:ASR9006(admin)##show interfaces statistics
Answer : A
Question 6
Which three types of packet drop statistics can be determined by using the following Cisco IOS XR CLI show command? (Choose three.)
RP/0/RSP1/CPU0:ASR9006-A#show cef ipv4 drops location all
- A. no route drops
- B. no adjacency drops
- C. RPF drops
- D. ACL drops
- E. asymmetric routing drops
- F. Cisco Express Forwarding exception drops
Answer : ABC
Question 7
Referring to the configuration output exhibit, which set of commands below will allow you to insert a new line just before the permit any statement?
- A. router#configure router(config)#ipv4 access-list Ethernet_In router(config-ipv4-acl)# 2.5 deny udp any eq tftp any
- B. router#configure router(config)#ipv4 access-list Ethernet_In router(config-ipv4-acl)# insert after 2 deny udp any eq tftp any
- C. router #resequence access-list ipv4 Ethernet_In router#configure router(config)#ipv4 access-list Ethernet_In router(config-ipv4-acl)#25 deny udp any eq tftp any
- D. router#configure router(config)#ipv4 access-list Ethernet_In router(config-ipv4-acl)#move 3 to 4 router(config-ipv4-acl)#3 deny udp any eq tftp any
Answer : C
Question 8
Which two commands will allow you to check if interface Bundle-Ether1 has ACL Ethernet_In applied to its ingress? (Choose two.)
- A. show access-list ipv4 Ethernet_In
- B. show interface Bundle-Ether1 access-list
- C. show running-config interface Bundle-Ether 1
- D. show running-config ipv4 access-list Ethernet_In
- E. show ipv4 interface Bundle-Ether 1
Answer : CE
Question 9
Which Cisco IOS XR command would you use to view the actual traffic statistics of packets that are exiting the router in the different configured QoS queues on
TenGigE 0/0/0/0 in Cisco IOS XR Software?
- A. show policy-map interface TenGigE 0/0/0/0
- B. show qos interface TenGigE 0/0/0/0 output
- C. show interface TenGigE 0/0/0/0 qos
- D. show interface TenGigE 0/0/0/0 policy-map output
- E. monitor interface TenGigE 0/0/0/0
Answer : A
Question 10
What are the three potential use cases of NetFlow in an actual network deployment? (Choose three.)
- A. identifying the traffic source and destination for optimizing peering and transit links
- B. providing the network telemetry for identifying and mitigating DDoS attacks
- C. providing traffic traces that are comparable to what is provided by a packet sniffer and RMON
- D. providing a means for traffic accounting and billing for customers
- E. providing deep application inspections and controls
Answer : ABD
Question 11
Which three configuration steps are mandatory in order to enable NetFlow sampling on Cisco IOS XR Software? (Choose three.)
- A. flow monitor-map
- B. sampler-map
- C. flow exporter-map
- D. interface netflow configuration
- E. importer-map
Answer : ABD
Question 12
Which command configures IPv4 uRPF strict mode on an interface?
- A. ipv4 verify unicast source reachable-via any
- B. ipv4 verify unicast source reachable-via tx
- C. ipv4 verify unicast source reachable-via rx
- D. ipv4 verify unicast destination reachable-via rx
- E. ipv4 verify multicast source reachable-via tx
Answer : C
Question 13
Which command in Cisco IOS XR Software is the recommended way to configure an IPv4 address on an interface?
- A. ip address 10.0.0.1/8
- B. ip address 10.0.0.1 255.0.0.0
- C. ipv4 address 10.0.0.1/8
- D. ip addr add 10.0.0.1/8 dev Gig 0/0/0/0
Answer : C
Question 14
Refer to the exhibit.
What is the expected behavior for the following Cisco IOS XR config?
- A. The interface will have IPv6 address 10:10::1/64 only.
- B. The interface will have IPv6 address 20:20::1/64 only.
- C. The interface will have IPv6 address 10:10::1/64 and IPv6 address 20:20::1/64.
- D. The commit will fail.
Answer : C
Question 15
In Cisco IOS XR platforms, IP multicast packets are replicated on which two components? (Choose two.)
- A. switch fabric
- B. ingress line card
- C. egress line card
- D. multicast forwarding ASIC
Answer : AC