Free 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) Exam Questions and Answers
Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) is exam 644-906, part of Cisco certifications. In Cisco's current scheme the first digit gives the level: 100 is entry, 200 associate, 300 the CCNP concentration exams, 350 the CCNP core exams that also qualify you for CCIE, 500 specialist and 700 the unproctored sales exams. Older codes such as 400-, 640- and 642- predate the February 2020 restructure, when every CCNA track was collapsed into one exam and CCNP moved to a core-plus-concentration model.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 7, 2026
- Exam code
- 644-906
- Provider
- Cisco
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
What is the purpose of the IOS XR device recovery feature?
Please select an optionIncorrectCorrect answer: D
IOS XR's recovery feature helps restore lost or corrupted configurations after a device failure.
Was this answer correct?Question #2
Which command would you use to initiate a rollback in IOS XR?
Please select an optionIncorrectCorrect answer: A
The 'rollback' command is used to revert to a previous configuration state in IOS XR.
Was this answer correct?Question #3
What feature does IOS XR use to allow non-disruptive upgrades?
Please select an optionIncorrectCorrect answer: D
In-service software upgrades allow updates without taking the system down, ensuring continuous service.
Was this answer correct?Question #4
How can you verify the status of an interface on an IOS XR router?
Please select an optionIncorrectCorrect answer: A
The 'show interfaces' command displays the status and statistics of the interfaces on an IOS XR router.
Was this answer correct?Question #5
In IOS XR, what is the purpose of the 'commit' command?
Please select an optionIncorrectCorrect answer: D
The 'commit' command applies configuration changes made in the CLI in IOS XR.
Was this answer correct?Question #6
What command would you use to check the system uptime in IOS XR?
Please select an optionIncorrectCorrect answer: C
The 'show version' command displays system information, including uptime.
Was this answer correct?Question #7
In IOS XR, what does the command 'admin set' do?
Please select an optionIncorrectCorrect answer: B
The 'admin set' command is used to assign or modify user privileges.
Was this answer correct?Question #8
Which protocol does IOS XR use for routing updates?
Please select an optionIncorrectCorrect answer: A
IOS XR supports BGP as a robust routing protocol for exchanging routing information.
Was this answer correct?Question #9
What is the primary purpose of the IOS XR Resource Manager?
Please select an optionIncorrectCorrect answer: D
The Resource Manager in IOS XR is responsible for allocating and managing hardware resources.
Was this answer correct?Question #10
Which feature of IOS XR allows for dynamic load balancing?
Please select an optionIncorrectCorrect answer: A
Traffic Engineering optimizes network resource use and allows for dynamic load balancing across paths.
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FAQ
Learn More: https://www.cisco.com/site/us/en/learn/training-certifications/certifications/index.html
- Q1: What is the 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) exam?
- A: 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) is a Cisco certification exam. Judging by the questions in our bank, it concentrates on OSPF, neighbor, route, interface and routing.
- Q2: What topics does the 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) exam cover?
- A: Questions in our 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) bank cluster around OSPF, neighbor, route, interface, routing, router and verify. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR)?
- A: Work through the 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR). Answers are verified and updated weekly.
- Q5: Where do I register for the 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) exam?
- A: Register through Cisco directly at https://www.cisco.com/site/us/en/learn/training-certifications/certifications/index.html. Exampractice is not affiliated with Cisco and does not administer the exam.
- Q6: Is there a free 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) sample?
- A: Yes. Every 644-906: Implementing and Maintaining Cisco Technologies Using IOS XR (IMTXR) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are Cisco Certification Exams?
- A: Cisco Certification Exams validate your expertise in using and managing Cisco networking and IT solutions. These certifications demonstrate your proficiency in designing, implementing, and troubleshooting Cisco-based networks and systems, covering areas such as routing and switching, security, wireless, data center, and collaboration.
- Q8: Why should I pursue Cisco Certification?
- A: Cisco Certification enhances your professional credibility, showcasing your skills and knowledge in Cisco technologies. This can lead to better job opportunities, higher salaries, and career advancement in networking and IT industries.
- Q9: What are the benefits of Cisco Certification?
- A: Benefits include recognition as a certified networking professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Cisco technologies and best practices.
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- A: Network engineers, system administrators, IT professionals, and anyone involved in designing, implementing, and managing network solutions using Cisco products should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of Cisco Certification Exams are available?
- A: Cisco offers various certification paths, including:
- Q12: How do I prepare for Cisco Certification Exams?
- A: Preparation can include official Cisco training courses, study guides, practice exams, online tutorials, and hands-on experience with Cisco networking equipment and solutions.
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- A: Cisco Certification Exams can be taken at authorized Pearson VUE testing centers worldwide or online, providing flexibility to fit your schedule and location.
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- A: Some exams may have prerequisites, such as foundational knowledge or prior certifications. Check the specific requirements for each certification path on the Cisco website.
- Q16: How often do I need to recertify for Cisco Certifications?
- A: Cisco Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest networking technologies and industry practices.