2017 Feb. NEW 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR – (IMTXR) Exam Questions Updated Today!
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QUESTION 31
The Cisco CRS 16-Slot Line Card Chassis Site Planning Guide suggests having 48 inches of clearance behind the chassis. What would definitely happen to the system if there were only 28 inches of clearance behind the Cisco CRS 16-Slot Line Card Chassis?
A. The system would overheat due to inadequate airflow.
B. The fabric card could not be exchanged if one failed.
C. The modular services card (MSC) could not be exchanged if one failed.
D. The fan tray could not be exchanged if one failed.
Answer: D
QUESTION 32
How many planes are there in the Cisco CRS-3 switch fabric?
A. 1
B. 3
C. 7
D. 8
Answer: D
QUESTION 33
What is the cell size of the cells that traverse the switch fabric on the Cisco CRS-3?
A. 128 bytes
B. 136 bytes
C. 144 bytes
D. 200 bytes
E. 288 bytes
Answer: B
QUESTION 34
Where are client interfaces terminated on the Cisco CRS-3?
A. the modular services card
B. the physical layer interface module(s)
C. the switch fabric interface terminator
D. the Service Processor 40
E. the Service Processor 140
Answer: B
QUESTION 35
In order to determine the hardware and firmware revision of a linecard, what is the correct command that should be invoked?
A. RP/0/RP0/CPU0:CRS-MC#show version
B. RP/0/RP0/CPU0:CRS-MC#show platform
C. RP/0/RP0/CPU0:CRS-MC(admin)#show platform
D. RP/0/RP0/CPU0:CRS-MC#show diagnostic summary
E. RP/0/RP0/CPU0:CRS-MC(admin)#show diag details
Answer: E
QUESTION 36
Which two groups of architectural components go together? (Choose two.)
A. RIB, AIB, FIB
B. Cisco Express Forwarding, FIB, AIB
C. FEC, RIP, AIB
D. PIE, RIB, BGP
E. SDR, AIB, FEC
Answer: AB
QUESTION 37
Refer to the exhibit. If you have ROMMONs and FPDs with the Upg/Dng field marked “Yes” and you ran the upgrade hw-module fpd all location all command, what did you upgrade?
A. upgraded only the FPD for the cards that the Upg/Dng field marked “Yes”
B. upgraded all of the FPDs on all cards with an FPD regardless of the Upg/Dng field markings
C. upgraded only the FPD and ROMMON for the cards that the Upg/Dng field marked “Yes”
D. upgraded all of the FPDs and ROMMONs on all cards with an FPD or ROMMON regardless of
the Upg/Dng field markings
Answer: C
QUESTION 38
Which two of the following are correct commands to activate the PIE file <hfr-mgbl-p.pie-4.0.1>? (Choose two.)
A. install add tftp://172.20.165.36/hfr-mgbl-p.pie-4.0.1 activate
B. install activate tftp://172.20.165.36/hfr-mgbl-p.pie-4.0.1
C. install add disk0:hfr-mgbl-p-4.0.1 activate
D. install activate disk0:hfr-mgbl-p.pie-4.0.1
Answer: AD
QUESTION 39
Which command will correctly deactivate asr9k-mpls-p-4.1.0?
A. RP/0/RSP0/CPU0:P1 (admin)#install remove disk0:asr9k-mpls-p-4.1.0
B. RP/0/RSP0/CPU0:P1 (config)#install deactivate smu location disk0:
C. RP/0/RSP0/CPU0:P1 (admin-config)#deactivate disk0:asr9k-mpls-p-4.1.0
D. RP/0/RSP0/CPU0:P1 (admin)#install deactivate disk0:asr9k-mpls-p-4.1.0
E. RP/0/RSP0/CPU0:P1 #asr9k-mpls-p-4.1.0 disk0:deactivate sync
Answer: D
QUESTION 40
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
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