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A Cloud Guru

EX442 Practice Exam Lab

This hands-on lab is built around the objectives identified by Red Hat for the `Red Hat Certified Specialist in Performance Tuning (EX442)` exam. The EX442 exam is a practical, scenario-based exam. This lab is not an exact copy of the exam; it is designed to provide possible tasks and situations that you might encounter when taking the exam. The lab will have a 4-hour time limit, matching the actual `EX442` exam duration, and will serve as a summary of the some of the lessons and materials covered during this course. Good luck with your studies! *This course is not approved or sponsored by Red Hat.*

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Path Info

Level

Advanced

Duration

2h 0m

Published

Jun 30, 2021

Challenge

Review and Investigate the evocortl Service
1. Check the status of the evocortl service.
  - If the service is not running, start the service.
2. Investigate relevant log files, including journalctl and /var/log/messages.
3. Correct any issues identified during the troubleshooting process.
  - Note: This service should be optimized to limit memory impact to 1000M.
Challenge

Review and Investigate the evocordd Service
1. Check the status of the evocordd service.
  - If the service is not running, start the service.
2. Investigate relevant log files, including journalctl and /var/log/messages.
3. Correct any issues identified during the troubleshooting process.
  - Note: This service should be optimized to limit CPU impact to 20% utilization.
Challenge

Review and Investigate the evocordatlg Service
1. Check the status of the evocordatlg service.
  - If the service is not running, start the service.
2. Investigate relevant log files, including journalctl and /var/log/messages.
3. Correct any issues identified during the troubleshooting process.
  - Note: This service does not have a hard optimization requirement but does have a recommended requirement, so be sure to investigate properly.
Challenge

Reboot the Lab and Confirm Changes Persist
1. Run the /home/cloud_user/examvalidation.sh to audit the system.
  - NOTE: The script must be executed with elevated privileges.
2. Review the script output.
  - If any Status items are marked as REVIEW, review the details closely.
  - NOTE: There are several ways that issues could be resolved, so it is possible that your solutions may not be audited by the script. In this situation, manually review the configurations to ensure everything is operating and optimized to meet system requirements.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.