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

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

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Cisco 644-906 Value Pack (Frequently Bought Together)

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Value Pack Total: $179.94  $79.98

About Cisco 644-906 Real Exam

To schedule your exam

  • Follow the prompts to register.
  • Log into your account at Pearson VUE.
  • Select Proctored Exams and enter the exam number, 644-906.

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

Cisco 644-906 Exam Certification Details:

Exam Price$300 USD
Number of Questions55-65
Exam NameImplementing and Maintaining Cisco Technologies Using IOS XR
Exam RegistrationPEARSON VUE
Recommended TrainingImplementing and Maintaining Cisco Technologies Using IOS XR (IMTXR)
Sample QuestionsCisco 644-906 Sample Questions
Exam Code644-906 IMTXR
Passing ScoreVariable (750-850 / 1000 Approx.)
Duration75 minutes

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Cisco 644-906 Exam Syllabus Topics:

SectionObjectives
Topic 1: Automation and Programmability (Foundational)- Model-driven telemetry overview
- Basic IOS XR automation concepts
Topic 2: IOS XR System Architecture- Process separation and high availability design
- Platform architecture and operating model
Topic 3: MPLS and Service Provider Technologies- Traffic engineering concepts
- L3VPN and L2VPN services
- MPLS forwarding and label distribution
Topic 4: Layer 2 Technologies- Ethernet switching concepts in IOS XR
- VLANs and trunking
Topic 5: Layer 3 Routing- BGP design and policy control
- OSPF configuration and optimization
- IS-IS implementation
Topic 6: Quality of Service (QoS)- QoS classification and marking
- Queuing and congestion management
Topic 7: System Operations and Troubleshooting- Troubleshooting routing and forwarding issues
- Monitoring IOS XR systems

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