Cisco 644-906 Exam : Implementing and Maintaining Cisco Technologies Using IOS XR

  • Exam Code: 644-906
  • Exam Name: Implementing and Maintaining Cisco Technologies Using IOS XR
  • Updated: Jun 01, 2026
  • Q & A: 77 Questions and Answers

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About Cisco 644-906 Exam Questions

Understanding functional and technical aspects of Platform (644-906 SPAUTO)

The following will be asked from you in the CISCO 644-906 exam dumps pdf:

  • Understanding what is a FPD.PIE
  • Recommend PDU as a function of facility
  • Describe CRS air-flow
  • Identify RP CRS/ASR9000
  • Recommend rack space requirements
  • Understand what is Parallel FPD
  • Upgrading FPDs and ROMMONs
  • Showing current FPD version information
  • Recommend environmental levels for system installation
  • Difference between admin versus exec plane for show platform
  • Difference between admin versus exec plane for show platform
  • Use proper grounding for installation
  • Show power alarm values
  • Gather system environmental output
  • Verify system-detected environment is within tolerance levels
  • Monitor system power level
  • Show environmental alarm values
  • Identify ASR9000 line cards
  • Describe ASR9000 fabric
  • Identify ASR9000 chassis
  • Show power usage
  • Identify CRS switch fabric
  • Identify ASR9000 SIP-700/SPA
  • Understand FPD versus ROMMON
  • Identify CRS chassis
  • Identify components of CRS fabric
  • Identify management interface
  • Identify MSC
  • Show card status via show platform
  • Show cards via show diagrams
  • Identify ASR9000 RSP
  • Show fan status
  • Differentiate between single and multi-chassis
  • Identify ASR9000 PDU
  • Install appropriate PDU for chassis
  • Identify CRS SIP/SPA
  • Clear environmental alarm
  • Configure Auto FPD
  • Upgrade FPD and ROMMON Upgrade
  • Identify PLIM
  • Describe ASR9000 air-flow
  • Show inventory of the system
  • Identify cable management

Reference: http://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/specialist-imtxr.html

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Exam Topics

The following are covered in CISCO 644-906 practice exams and CISCO 644-906 practice test:

  • Management Plane
  • Control Plane
  • Operating System
  • Platform
  • Data Plane

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