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2018 Aug Cisco Official New Released 646-048
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Implementing and Maintaining Cisco Technologies Using IOS XR
Question No: 11
Which two of the following are correct commands to activate the PIE file lt;hfr-mgbl-p.pie- 4.0.1gt;? (Choose two.)
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install add tftp://172.20.165.36/hfr-mgbl-p.pie-4.0.1 activate
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install activate tftp://172.20.165.36/hfr-mgbl-p.pie-4.0.1
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install add disk0:hfr-mgbl-p-4.0.1 activate
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install activate disk0:hfr-mgbl-p.pie-4.0.1
Answer: A,D
Question No: 12
Which command will correctly deactivate asr9k-mpls-p-4.1.0?
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RP/0/RSP0/CPU0:P1 (admin)#install remove disk0:asr9k-mpls-p-4.1.0
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RP/0/RSP0/CPU0:P1 (config)#install deactivate smu location disk0:
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RP/0/RSP0/CPU0:P1 (admin-config)#deactivate disk0:asr9k-mpls-p-4.1.0
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RP/0/RSP0/CPU0:P1 (admin)#install deactivate disk0:asr9k-mpls-p-4.1.0
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RP/0/RSP0/CPU0:P1 #asr9k-mpls-p-4.1.0 disk0:deactivate sync
Answer: D
Question No: 13
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?
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P images can only support legacy hardware, while px images can only support new CRS-3 hardware.
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P images can use an SMU to operate as x86 images.
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P images can only support Power PC hardware, while px images can support both Power PC and Intel hardware in the same chassis.
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P and px images can both be installed on the same ROMMON version.
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P and px images are roughly the same because they are built to operate on the same system.
Answer: C
Question No: 14
Which Cisco IOS XR command sequence will load a specific configuration?
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(config)#load disk0:name.cfg
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#copy disk0:name.cfg running-confirguration
C. #copy tftp://255.255.255.255/name.cfg
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#load commit changes lt;namegt;
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(config)#load commit lt;namegt;
Answer: A
Question No: 15
Which of the following functions can be configured in the Administration Config mode? (Choose two)
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BGP routing
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MPLS Traffic Engineering
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SDR hostname
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Secure Shell login
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nonowner SDR
Answer: C,E
Question No: 16
Which two of the following statements regarding task-based authorization are true? (Choose two.)
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The user group concept in Cisco IOS XR Software relates to a group of users with common characteristics.
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All of the user groups are precreated by default.
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In addition to the predefined task groups, Cisco IOS XR Software provides the ability to custom create task groups consisting of individual tasks.
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User groups and task groups cannot inherit from other user groups and task groups.
Answer: A,C
Question No: 17
A network administrator needs to configure a default IPv4 route for a Cisco CRS-1 router. Which Cisco IOS XR command will accomplish this task?
A. RP/0/RSP0/CPU0:R15(config-static)#ip route 0.0.0.0 0.0.0.0 10.52.204.161
B. RP/0/RSP0/CPU0:R15(config-static-afi)#0.0.0.0/0 10.52.204.161
C. RP/0/RSP0/CPU0:R15(config)#router static 0.0.0.0/32 10.52.204.161
D. RP/0/RSP0/CPU0:R15#ip default-network 0.0.0.0 10.52.204.161 255.255.255.255
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it is not possible to configure static routes in Cisco IOS XR Software
Answer: B
Question No: 18
What is the main function of LPTS?
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filter routing updates
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maintain the Internal Forwarding Information Base (IFIB)
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classify transit packets
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guarantee reliable transport service for network management requests
Answer: B
Question No: 19
Where is the LPTS policer applied?
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egress line-card egress queue
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egress line-card CPU
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route processor CPU
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distributed RP CPU
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ingress line card
Answer: E
Question No: 20
Referring to the diagram and configuration on Routers XR-1 and XR-2,
which three statements are correct? (Choose three.)
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Router XR-1 can never be a designated router or designated intermediate system.
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The transmission of IS-IS packets will be suppressed on interface GigabitEthernet0/0/0/2 on Router XR-1.
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The received IS-IS packets from Router XR-2 will be suppressed from being processed.
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Router XR-1 and Router XR-2 will form a neighbor adjacency, and Router XR-2 will become the designated router or designated intermediate system.
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Router XR-1 will use the incremental shortest path first algorithm when there are minimal topology changes.
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Router XR-1 can form a neighbor adjacency over interface GigabitEthernet0/0/0/2 but will not advertise 10.1.1.0/24 in its link-state packets (LSPs).
Answer: D,E,F
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