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640-878 Actual Exam Questions

Last updated on Nov. 16, 2024.
Vendor:Cisco
Exam Code:640-878
Exam Name:Building Cisco Service Provider Next-Generation Networks Part 2 (SPNGN2)
Exam Questions:126
97% Passed the exam with this material
 

Topic 1 - Single Topic

Question #1 Topic 1

Which spanning-tree mode can be used to map several VLANs to a single spanning-tree instance?

  • A. MST
  • B. PVST+
  • C. PVRST+
  • D. RSTP
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Correct Answer: A 🗳️

Question #2 Topic 1

Which spanning-tree mode uses the name command to configure a region name?

  • A. MST
  • B. PVST+
  • C. PVRST+
  • D. RSTP
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Correct Answer: A 🗳️

Question #3 Topic 1

Which procedure is used as the last resort disaster recovery procedure to completely replace the currently installed IOS XR software on Cisco IOS XR routers?

  • A. netboot
  • B. turboboot
  • C. install recovery
  • D. install rollback
  • E. install add and install activate
Reveal Solution Hide Solution   Discussion  

Correct Answer: B 🗳️
http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.0/migration/guide/tbupgapp.pdf

Question #4 Topic 1

Which file extension indicates a bootable installation file in Cisco IOS XR software?

  • A. .bin
  • B. .tar
  • C. .smu
  • D. .pie
  • E. .vm
  • F. .mini
Reveal Solution Hide Solution   Discussion  

Correct Answer: E 🗳️

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