644-906 actual test : Jun 2021 Edition

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2021 Jun 644-906 Study Guide Questions:

Q41. Refer to the show environmental power-supply command output exhibit. 

How much power is the system currently using? 

A. 663 W 

B. 1150 W 

C. 1850 W 

D. 6000 W 

Answer: A 

Q42. 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 

Q43. 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 

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Q44. 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 

Q45. 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 

B. RP/0/RSP0/CPU0:R15(config-static-afi)# 

C. RP/0/RSP0/CPU0:R15(config)#router static 

D. RP/0/RSP0/CPU0:R15#ip default-network 

E. it is not possible to configure static routes in Cisco IOS XR Software 

Answer: B 

Q46. What is the effect of configuring "logging disable"? 

A. It will stop the router from sending logs to a syslog server. 

B. It will stop the router from displaying logs on a vty (Telnet or SSH) session. 

C. It will stop the router from displaying logs on a console session. 

D. It will stop the router from archiving logs to a local disk. 

Answer: C 

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Q47. Which optional PIE do you need to install if you want to use XML for the management and configuration of Cisco IOS XR Software? 

A. asr9k-mgbl-p.pie-4.2.0 

B. asr9k-doc-p.pie-4.2.0 

C. asr9k-services-p.pie-4.2.0 

D. asr9k-xml-p.pie-4.2.0 

E. do not need a PIE because it is part of the minimum boot image (MBI) 

Answer: A 

Q48. Which four list the mandatory steps in order to implement SSH v1 access on Cisco IOS XR Software? (Choose four.) 

A. install and activate services PIE 

B. install and activate security PIE 

C. reload system after installing required PIE 

D. generate SSH cryptography key 

E. configure hostname and domain name 

F. configure ssh-server in owner SDR 

G. configure AAA services on the router 

H. configure TACACS server on the router 

Answer: B,D,E,F 

Q49. Which Cisco IOS XR command sequence will load a specific configuration? 

A. (config)#load disk0:name.cfg 

B. #copy disk0:name.cfg running-confirguration 

C. #copy tftp:// 

D. #load commit changes <name> 

E. (config)#load commit <name> 

Answer: A 

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