Cisco 644-906 Exam Certification Details:
| Exam Name | Implementing and Maintaining Cisco Technologies Using IOS XR |
| Number of Questions | 55-65 |
| Exam Price | $300 USD |
| Exam Registration | PEARSON VUE |
| Sample Questions | Cisco 644-906 Sample Questions |
| Recommended Training | Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) |
| Passing Score | Variable (750-850 / 1000 Approx.) |
| Exam Code | 644-906 IMTXR |
| Duration | 75 minutes |
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Understanding functional and technical aspects of Operating System (644-906 SPAUTO)
The following will be asked from you in the CISCO 644-906 exam dumps:
- Assigning user privilege to root-system
- Understand what configuration is in the exec plane
- Understand the default VRF
- How to perform process restart
- Understand what is LPTS
- Understand between admin user versus exec username
- How to check processes like state, number of restarts, job id, pid, tid
- Understanding types of packages (Mini.PIE)
- Understand P versus PX images and the hardware they support
- Understand protected memory space versus shared memory and which area uses it
- Understand IOS-XR versioning and installation restrictions
- Check which packages are active
- Understanding types of packages (SMUs)
- Committing the configuration (using the commit confirm feature)
- Using TFTP, FTP, USB thumb drive, and hard drive as the source
- Deactivate PIEs or SMUs
- With activate flag
- Understanding how task-based authorization work
- Understand what is target config
- Base assumption of EEM knowledge - understand what is possible/not possible
- Understanding types of packages (optional PIEs)
- Initial or recovery software installation (ROMMON variables)
- Show where certain processes are running
- Check installation log
- Assigning user privilege to cisco-support
- Assigning user privilege to root-lr
- Locate core files and moving them to a server
- Showing configuration IDs and labels
- Understand when a semantic check is done
- Going back to a previous configuration
- Committing the configuration (show config fail)
- Check which packages are committed
- Check how much memory a process is using
- Understand what configuration is in the admin plane
- Understand differences between owner and non-owner SDR in access to admin plane and exec plane
- Check how much CPU a process is using
- Understand when a syntax check is done
- Using source flag
- Committing the configuration (replacing the configuration)
- Loading configuration
- Understand about LPTS policer
- Debug commands with ACL filtering
- Using the parser with pipe, include, exclude, begin, regex
- Understanding security certificate in PIEs and SMUs
- Committing the installation path
- How to look at the memory utilization on the line card
- Remove inactive packages, PIEs, or SMUs
- Activate PIEs or SMUs
- Understand what is active config
- How to use Show LPTS commands
- Understanding types of packages (Mini.VM)
- How to look at the memory utilization on the route processor
- Configure interfaces before the physical interface is available)
- Using TAR file
- How to find a blocked process
- Core file configuration location including hard drive and FTP
- Initial or recovery software installation (Turboboot Mini.VM file)
- Show policer values and drop counts in LPTS
- See what install requests are currently active
- How to use Show Tech Support commands
- Committing the configuration (atomic versus best effort)
- Show configuration history
- Committing the configuration (with labels and comments)
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Cisco 644-906 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| IOS XR Architecture and Platform Fundamentals | - Process management and control/data plane separation - Device boot process and file system - IOS XR system architecture overview |
| MPLS and VPN Services | - L3VPN implementation - Traffic engineering concepts - MPLS label switching fundamentals |
| Routing Protocols | - BGP configuration and policy control - OSPF configuration and optimization - IS-IS implementation |
| Infrastructure Services | - System management and monitoring - Logging and troubleshooting tools |
| Multicast | - Multicast routing in service provider networks - PIM sparse mode configuration |
| Quality of Service (QoS) | - Traffic classification and marking - QoS models and architecture - Congestion management and avoidance |
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