The performance-based Red Hat Certificate of Expertise in Red Hat Enterprise Linux Diagnostics and Troubleshooting (EX342) tests your ability to analyze Red Hat® Enterprise Linux® systems for common issues that may cause degradation or loss of performance and either correct the issues or gather forensic information that can be passed along to a third party.
This exam is based on Red Hat Enterprise Linux version 8.4.
Who Can Benefit
System administrators who manage Red Hat Enterprise Linux systems
System administrators who wish to demonstrate problem solving and analysis skills
A Red Hat Certified Engineer (RHCE) interested in earning a Red Hat Certificate of Expertise or RHCA credential
Taken Red Hat Enterprise Linux Diagnostics and Troubleshooting (RH342) or have similar experience troubleshooting Red Hat Enterprise Linux deployments.
Earned Red Hat Certified Engineer or have equivalent systems administration experience
Study points for the exam
To help you prepare, the exam objectives highlight the task areas you can expect to see covered in the exam. Red Hat reserves the right to add, modify, and remove exam objectives. Such changes will be made public in advance.
Understand and employ general methods for troubleshooting
Collect system information to aid in troubleshooting
Consult documentation resources to aid in troubleshooting
Monitor systems for vital characteristics
Configure systems to send log messages to a centralized host
Diagnose and troubleshoot system start up issues
Identify and resolve service failures affecting boot
Regain root control of a system
Troubleshoot boot issues
Identify hardware and hardware problems
Manage kernel modules and their parameters
Diagnose and troubleshoot file system issues
Recover corrupted file systems
Recover mis-configured or broken LVM configurations
Recover data from encrypted file systems
Identify and fix iSCSI issues
Resolve package management issues
Resolve package management dependency issues
Recover a corrupted RPM database
Identify and restore changed files
Troubleshoot and fix network connectivity issues
Use standard tools to verify network connectivity
Identify and fix network connectivity issues
Inspect network traffic to aid troubleshooting
Diagnose application issues
Identify library dependencies for third-party software
Identify if an application suffers from memory leaks
Use standard tools to debug an application
Identify and fix issues related to SELinux
Identify and fix authentication issues
Identify and fix pluggable authentication module (PAM) issues
Identify and fix LDAP and Kerberos identity management issues
Gather information to aid third party investigation of issues
Classes begin promptly at 9:00 am, and typically end at 5:00 pm.
Does the course schedule include a Lunchbreak?
Lunch is normally an hour long and begins at noon. Coffee, tea, hot chocolate and juice are available all day in the kitchen. Fruit, muffins and bagels are served each morning. There are numerous restaurants near each of our centers, and some popular ones are indicated on the Area Map in the Student Welcome Handbooks - these can be picked up in the lobby or requested from one of our ExitCertified staff.
How can someone reach me during class?
If someone should need to contact you while you are in class, please have them call the center telephone number and leave a message with the receptionist.
What languages are used to deliver training?
Most courses are conducted in English, unless otherwise specified. Some courses will have the word "FRENCH" marked in red beside the scheduled date(s) indicating the language of instruction.
What does GTR stand for?
GTR stands for Guaranteed to Run; if you see a course with this status, it means this event is confirmed to run. View our GTR page to see our full list of Guaranteed to Run courses.
Yes, we provide training for groups, individuals and private on sites. View our group training page for more information.
Does ExitCertified deliver group training?
Yes, we provide training for groups, individuals, and private on sites. View our group training page for more information.
What does vendor-authorized training mean?
As a vendor-authorized training partner, we offer a curriculum that our partners have vetted. We use the same course materials and facilitate the same labs as our vendor-delivered training. These courses are considered the gold standard and, as such, are priced accordingly.
Is the training too basic, or will you go deep into technology?
It depends on your requirements, your role in your company, and your depth of knowledge. The good news about many of our learning paths, you can start from the fundamentals to highly specialized training.
How up-to-date are your courses and support materials?
We continuously work with our vendors to evaluate and refresh course material to reflect the latest training courses and best practices.
Are your instructors seasoned trainers who have deep knowledge of the training topic?
ExitCertified instructors have an average of 27 years of practical IT experience. They have also served as consultants for an average of 15 years. To stay up to date, instructors will at least spend 25 percent of their time learning new emerging technologies and courses.
Do you provide hands-on training and exercises in an actual lab environment?
Lab access is dependent on the vendor and the type of training you sign up for. However, many of our top vendors will provide lab access to students to test and practice. The course description will specify lab access.
Will you customize the training for our company’s specific needs and goals?
We will work with you to identify training needs and areas of growth. We offer a variety of training methods, such as private group training, on-site of your choice, and virtually. We provide courses and certifications that are aligned with your business goals.
How do I get started with certification?
Getting started on a certification pathway depends on your goals and the vendor you choose to get certified in. Many vendors offer entry-level IT certification to advanced IT certification that can boost your career. To get access to certification vouchers and discounts, please contact firstname.lastname@example.org.
Will I get access to content after I complete a course?
You will get access to the PDF of course books and guides, but access to the recording and slides will depend on the vendor and type of training you receive.
the course is good, covers many aspects, wish the lab is a little bit more in depth
Fantastic and great training. Tons of hands-on labs to really make you understand the material being thought.
Class was easy to sign up for and ExitCertified provided very good communication
ExitCertified was a great. They gave me all the materials and information I needed ahead of time to prepare for the course.
Quick to sign-up to course, and was able to garner some information from the course.