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Implementing and Maintaining Cisco Technologies Using IOS XR
Question No: 31
How would MPLS Label Distribution Protocol, Graceful Restart be configured on TenGigE 0/0/0/1?
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Interface Ten0/0/0/1 mpls ip
Graceful-restart
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router ospf interface Ten 0/0/0/1
address-family ipv4 uni mpls ip
graceful-restart
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mpls ldp
address-family ipv4 unicast mpls ip
graceful-restart
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mpls ldp graceful restart
interface Ten 0/0/0/1
Answer: D
Question No: 32
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?
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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
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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
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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
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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 No: 33
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.)
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tunnel role
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TE metric
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tunnel ID
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physical bandwidth
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incoming and outgoing label
Answer: A,C,E
Question No: 34
What are the two prerequisites for enabling multicast-only fast reroute (MoFRR) in a network? (Choose two.)
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There must be an Equal-Cost Multipath (ECMP) topology.
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IP multicast traffic must use the group address 232.0.0.0/8.
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PIM-SSM needs to be configured.
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There must be a valid reverse path back to the multicast source.
Answer: A,D
Question No: 35
Which CLI command can be used to display interfaces statistics?
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RP/0/RSP1/CPU0:ASR9006#monitor interface
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RP/0/RSP1/CPU0:ASR9006#show interfaces summary
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RP/0/RSP1/CPU0:ASR9006#show interfaces statistics | inc errors
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RP/0/RSP1/CPU0:ASR9006#show interfaces accounting | inc errors
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RP/0/RSP1/CPU0:ASR9006(admin)#show flow platform producer statistics location 0/0/CPU0
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RP/0/RSP1/CPU0:ASR9006(admin)##show interfaces statistics
Answer: A
Question No: 36
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
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no route drops
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no adjacency drops
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RPF drops
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ACL drops
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asymmetric routing drops
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Cisco Express Forwarding exception drops
Answer: A,B,C
Question No: 37
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?
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:router#configure
:router(config)#ipv4 access-list Ethernet_In
:router(config-ipv4-acl)# 2.5 deny udp any eq tftp any
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:router#configure
:router(config)#ipv4 access-list Ethernet_In
:router(config-ipv4-acl)# insert after 2 deny udp any eq tftp any
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: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
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: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 No: 38
Which two commands will allow you to check if interface Bundle-Ether1 has ACL Ethernet_In applied to its ingress? (Choose two.)
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show access-list ipv4 Ethernet_In
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show interface Bundle-Ether1 access-list
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show running-config interface Bundle-Ether 1
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show running-config ipv4 access-list Ethernet_In
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show ipv4 interface Bundle-Ether 1
Answer: C,E
Question No: 39
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?
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show policy-map interface TenGigE 0/0/0/0
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show qos interface TenGigE 0/0/0/0 output
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show interface TenGigE 0/0/0/0 qos
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show interface TenGigE 0/0/0/0 policy-map output
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monitor interface TenGigE 0/0/0/0
Answer: A
Question No: 40
What are the three potential use cases of NetFlow in an actual network deployment? (Choose three.)
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identifying the traffic source and destination for optimizing peering and transit links
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providing the network telemetry for identifying and mitigating DDoS attacks
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providing traffic traces that are comparable to what is provided by a packet sniffer and RMON
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providing a means for traffic accounting and billing for customers
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providing deep application inspections and controls
Answer: A,B,D
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