Cisco : 644-906 Questions & Answers
Updated: May 29, 2026
No. of Questions: 77 Questions & Answers with Testing Engine
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CISCO 644-906 Official Certification Site
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:
- Understand what is LPTS
- Showing configuration IDs and labels
- Understanding how task-based authorization work
- How to use Show Tech Support commands
- Show where certain processes are running
- Assigning user privilege to cisco-support
- Understand about LPTS policer
- Committing the installation path
- Base assumption of EEM knowledge - understand what is possible/not possible
- Remove inactive packages, PIEs, or SMUs
- Understand differences between owner and non-owner SDR in access to admin plane and exec plane
- Understand the default VRF
- How to find a blocked process
- Check which packages are active
- Check installation log
- How to use Show LPTS commands
- Using TFTP, FTP, USB thumb drive, and hard drive as the source
- Initial or recovery software installation (Turboboot Mini.VM file)
- Understanding security certificate in PIEs and SMUs
- Understand protected memory space versus shared memory and which area uses it
- Using source flag
- How to perform process restart
- Using the parser with pipe, include, exclude, begin, regex
- Locate core files and moving them to a server
- Activate PIEs or SMUs
- Assigning user privilege to root-system
- Understand when a semantic check is done
- Understanding types of packages (Mini.VM)
- Going back to a previous configuration
- Configure interfaces before the physical interface is available)
- How to look at the memory utilization on the route processor
- Understand when a syntax check is done
- See what install requests are currently active
- Understanding types of packages (Mini.PIE)
- Check which packages are committed
- Using TAR file
- Understanding types of packages (optional PIEs)
- Core file configuration location including hard drive and FTP
- Loading configuration
- Committing the configuration (atomic versus best effort)
- Understanding types of packages (SMUs)
- How to look at the memory utilization on the line card
- How to check processes like state, number of restarts, job id, pid, tid
- Committing the configuration (with labels and comments)
- Debug commands with ACL filtering
- Committing the configuration (replacing the configuration)
- Initial or recovery software installation (ROMMON variables)
- With activate flag
- Understand IOS-XR versioning and installation restrictions
- Understand what configuration is in the exec plane
- Understand P versus PX images and the hardware they support
- Committing the configuration (show config fail)
- Deactivate PIEs or SMUs
- Show policer values and drop counts in LPTS
- Assigning user privilege to root-lr
- Check how much CPU a process is using
- Understand what configuration is in the admin plane
- Understand between admin user versus exec username
- Committing the configuration (using the commit confirm feature)
- Show configuration history
- Check how much memory a process is using
- Understand what is active config
- Understand what is target config
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