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Cisco 644-906

644-906

Exam Code: 644-906

Exam Name: Implementing and Maintaining Cisco Technologies Using IOS XR

Updated: Jul 06, 2026

Q&A Number: 77 Q&As

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About Cisco 644-906 Exam dumps / Bootcamp

How to Prepare For Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR)

Preparation Guide for Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR)

Introduction

This exam tests a candidate's knowledge of implementing, verification testing, and maintaining Cisco core and edge technologies, using the IOS XR based router platforms, which include the CRS, ASR 9000, and the XR12000 routers. The Implementing and Maintaining Cisco Technologies using IOS XR (IMTXR) (646-906) exam is the exam associated with the IOS XR Specialist certification. A 90-minute exam with 65‒75 questions, the exam tests a candidate's knowledge of implementing, verification testing, and maintaining Cisco core and edge technologies, using the IOS XR based router platforms, which include the CRS, ASR 9000, and the XR12000 routers. CISCO 644-906 practice exams and CISCO 644-906 practice test will help to understand and memorize the concepts and detailed answers and solutions.

How much Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) costs

  • Types of questions: Performance Based Questions
  • Examination Name: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR)
  • Examination Fees: $200 USD
  • Passing Score: 300 or higher
  • No of Questions: 55 Questions
  • Length of Exam: 75 min

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

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

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

  • Define an AS-set for use in RPL
  • Configure iBGP neighbors with the typical configuration to use loopback addresses for peering
  • Configure BGP to support IPv4 routing
  • Add VPNv4 capability to one iBGP peer
  • Configuring exec timeout
  • Determine status of neighbors
  • Configuring terminals for logging display (term mon)
  • Configure MoFRR
  • Turn and debugging for ISIS adjacencies and explain the information shown
  • Configure interfaces to be part of the backbone area
  • Configure static-RP, Auto-RP and BSR for PIM-SM
  • Configure one iBGP neighbor to exchange both IPv4 and IPv6 prefixes over an IPv4 session
  • Re-sequence an ACL
  • Configure PIM-SM, PIM-SSM, PIM-SSM range
  • Configure neighbor logging so adjacency changes can be monitored
  • Implement ACLs to filter traffic on an interface
  • Configure one iBGP neighbor as an IPv6-only neighbor with IPv6 peer addresses
  • Apply ACLs in debug commands
  • Configure a simple pass_all policy for those eBGP neighbors
  • Verify AAA permissions upon command failure (i.e., debug aaa)
  • Enable some but not all of the IPv4 enabled interfaces for IPv6 routing
  • Execute a show bgp command using a route-policy to modify the output.
  • Configuring logging buffer
  • Verify vty access-group configuration
  • Verify that communities are added as expected
  • Monitoring logging buffer and filtering messages
  • Use neighbor-groups for identical configuration sections on multiple peers
  • Configure P2MP-TE for IP Multicast
  • Configure additional interfaces to be part of non-backbone area
  • Execute show command to verify status of LDP neighbors
  • Determine status of OSPF interfaces
  • Create a route policy that checks for an AS from the AS-set and adds a community for matching routes
  • Enable LDP on interfaces
  • Configuring syslog server host as logging destination
  • Clear interface counters
  • Configure an autonomous system number for BGP to use
  • Create a route-policy that uses an inline prefix-set and changes the local preference when a match is found
  • Configuring logging facility
  • Configure router to run LDP
  • Understand and monitor interface counters
  • Display the IPv4 unicast route table
  • Configure static routes in for IPv4 unicast in two different VRFs
  • Display OSPF database and determine which links are present
  • Configure eBGP neighbors for IPv4 routing
  • Understand the flow of packets through a router
  • Understand the information stored in a forwarding table entry
  • Configuring AAA command authorization - Using TACACS+ and local as fallback
  • Modify interface counter load interval
  • Configure one iBGP peer to support 6PE type functionality by adding addressfamily IPv6 labeled-unicast
  • Determine how much memory the BGP process uses Configure RPL
  • Compare to regular show command
  • Configure MSDP for interconnecting PIM-SM domains
  • Display the peer summary status for IPv4 and IPv6
  • Troubleshoot packet drops
  • Modify an existing applied ACL
  • Securing vty line and vty access
  • Configure the ISIS NET
  • Create a route policy that adds a community where the community is used as a parameter when the policy is called
  • Configure Multicast VPN
  • Implementing TACACS+ - assigning tasks groups and privileges
  • Configuring local logging device/archiving
  • Determine status if interfaces are configured for ISIS
  • Configuring line templates, vty pools
  • Determine the status of the routing adjacencies
  • Configure non-default metric on some interfaces
  • Add two VRFs into BGP and redistribute static routes into BGP for VPNv4
  • Configuring AAA authentication - using TACACS+ and local as fallback
  • Configure static routes for IPv4 unicast in the global table
  • Enable ISIS for IPv4 unicast routing
  • Configure BGP to support IPv6 routing
  • Monitor ACL counters
  • Describe the difference in processing of transit packets versus locally destined packets
  • Configure OSPF to support traffic engineering extensions
  • Display the IPv4 BGP table
  • Display the topologies for IPv4 and IPv6. Why are they different?
  • Configuring AAA command accounting
  • Configure Multicast NSF
  • Configure interfaces for ISIS routing
  • Enable RSVP on interfaces
  • Configure router to log neighbor events
  • Enable ISIS for IPv6 unicast routing
  • Display a specific entry and explain AS path and next-hop information

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