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Updated: May 31, 2026
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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:
- Configure a simple pass_all policy for those eBGP neighbors
- Add VPNv4 capability to one iBGP peer
- Display the topologies for IPv4 and IPv6. Why are they different?
- Configure one iBGP peer to support 6PE type functionality by adding addressfamily IPv6 labeled-unicast
- Monitor ACL counters
- Understand the flow of packets through a router
- Enable RSVP on interfaces
- Configuring AAA command authorization - Using TACACS+ and local as fallback
- Enable some but not all of the IPv4 enabled interfaces for IPv6 routing
- Display the peer summary status for IPv4 and IPv6
- Display the IPv4 BGP table
- Configure an autonomous system number for BGP to use
- Configure interfaces for ISIS routing
- Configuring AAA authentication - using TACACS+ and local as fallback
- Modify interface counter load interval
- Enable ISIS for IPv4 unicast routing
- Apply ACLs in debug commands
- Display the IPv4 unicast route table
- Modify an existing applied ACL
- Enable ISIS for IPv6 unicast routing
- Determine status of OSPF interfaces
- Determine how much memory the BGP process uses Configure RPL
- Configure non-default metric on some interfaces
- Configure one iBGP neighbor to exchange both IPv4 and IPv6 prefixes over an IPv4 session
- Understand and monitor interface counters
- Execute a show bgp command using a route-policy to modify the output.
- Implement ACLs to filter traffic on an interface
- Implementing TACACS+ - assigning tasks groups and privileges
- Troubleshoot packet drops
- Securing vty line and vty access
- Configure MSDP for interconnecting PIM-SM domains
- Enable LDP on interfaces
- Configuring logging facility
- Configure iBGP neighbors with the typical configuration to use loopback addresses for peering
- Verify that communities are added as expected
- Configure BGP to support IPv6 routing
- Configure MoFRR
- Create a route-policy that uses an inline prefix-set and changes the local preference when a match is found
- Configuring syslog server host as logging destination
- Clear interface counters
- Display OSPF database and determine which links are present
- Use neighbor-groups for identical configuration sections on multiple peers
- Create a route policy that checks for an AS from the AS-set and adds a community for matching routes
- Determine status if interfaces are configured for ISIS
- Determine status of neighbors
- Configure PIM-SM, PIM-SSM, PIM-SSM range
- Configuring exec timeout
- Describe the difference in processing of transit packets versus locally destined packets
- Configure Multicast VPN
- Configure static routes in for IPv4 unicast in two different VRFs
- Configure the ISIS NET
- Configure Multicast NSF
- Configuring AAA command accounting
- Understand the information stored in a forwarding table entry
- Compare to regular show command
- Execute show command to verify status of LDP neighbors
- Configure router to log neighbor events
- Verify AAA permissions upon command failure (i.e., debug aaa)
- Configure P2MP-TE for IP Multicast
- Configure one iBGP neighbor as an IPv6-only neighbor with IPv6 peer addresses
- Configuring line templates, vty pools
- Configure static-RP, Auto-RP and BSR for PIM-SM
- Configure additional interfaces to be part of non-backbone area
- Configure interfaces to be part of the backbone area
- Display a specific entry and explain AS path and next-hop information
- Create a route policy that adds a community where the community is used as a parameter when the policy is called
- Determine the status of the routing adjacencies
- Monitoring logging buffer and filtering messages
- Define an AS-set for use in RPL
- Configure neighbor logging so adjacency changes can be monitored
- Turn and debugging for ISIS adjacencies and explain the information shown
- Configure OSPF to support traffic engineering extensions
- Configure eBGP neighbors for IPv4 routing
- Configure router to run LDP
- Configuring local logging device/archiving
- Configuring terminals for logging display (term mon)
- Configure static routes for IPv4 unicast in the global table
- Verify vty access-group configuration
- Re-sequence an ACL
- Add two VRFs into BGP and redistribute static routes into BGP for VPNv4
- Configuring logging buffer
- Configure BGP to support IPv4 routing
Cisco 644-906 Exam Certification Details:
| Duration | 75 minutes |
| Exam Price | $300 USD |
| Exam Registration | PEARSON VUE |
| Exam Code | 644-906 IMTXR |
| Passing Score | Variable (750-850 / 1000 Approx.) |
| Recommended Training | Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) |
| Sample Questions | Cisco 644-906 Sample Questions |
| Exam Name | Implementing and Maintaining Cisco Technologies Using IOS XR |
| Number of Questions | 55-65 |
Difficulty in Attempting Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR)
Our CISCO 644-906 practice exam and CISCO 644-906 exam dumps contains all the material needed to pass the exam. It has a list of course topics, practice exams and exams and goes from basic to complex knowledge slowly.
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.
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