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

  • Exam Code: 644-906
  • Exam Name: Implementing and Maintaining Cisco Technologies Using IOS XR
  • Updated: Jul 18, 2026     Q & A: 77 Questions and Answers

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

Who Should Take The Exam

People who have experience with Cisco routers.

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Understanding functional and technical aspects of Network Device Programmability Cisco Service Provider Solutions (644-906 SPAUTO)

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

  • Diagnose model-driven dial-in/-out telemetry streams with gRPC for a Cisco IOS XR
  • Deploy device configuration and validate operational state using Ansible playbooks
  • Construct a Python script using NETCONF with YDK
  • Deploy device configuration and validate operational state using ncclient
  • Compare gNMI with NETCONF
  • Deploy device configuration and validate operational state using NetMiko
  • Construct a Python script using RESTCONF with JSON
  • Construct Xpath notation for a given node or instance of a node

Cisco 644-906 Exam Syllabus Topics:

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

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