Prove your skills in analyzing common problems with Red Hat Enterprise Linux The performance-based Red Hat Certified Specialist in Diagnostics and Troubleshooting exam 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 for support as appropriate. This exam is based on Red Hat Enterprise Linux version 8.4.
By passing this exam, you become a Red Hat Certified Specialist that also counts towards earning a Red Hat Certified Architect (RHCA®)
The following audiences may be interested in becoming a Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting:
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 becoming a Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting or a Red Hat Certified Architect
Red Hat recommends that candidates for the Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting exam have:
Taken Red Hat Enterprise Linux Diagnostics and Troubleshooting (RH342) or have similar experience troubleshooting Red Hat Enterprise Linux deployments.
Is a 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.
Candidates for the Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting exam should be able to:
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
Create kernel crashdumps
Compile and execute SystemTap modules
Red Hat reserves the right to add, modify, and remove objectives. Such changes will be made public in advance through revisions to this document.
As with all Red Hat performance-based exams, configurations must persist after restart without intervention.
Duration: 4.00 hours
Preparation Red Hat encourages all candidates for the Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting exam to consider taking the Red Hat Enterprise Linux Diagnostics and Troubleshooting (RH342) course. Although, attendance in this class is not required to take the exam.
While attending Red Hat classes can be an important part of one’s preparation to take this exam, attending class does not guarantee success on the exam. Previous experience, practice, and native aptitude are also important determinants of success.
Many books and other resources on system administration for Red Hat’s products are available. Red Hat does not officially endorse any as preparation guides for its exams. Nevertheless, you may find additional reading deepens understanding and can prove helpful.
Exam format This exam is a performance-based evaluation of candidates ability to diagnose and fix or otherwise troubleshoot common problems and issues encountered when working with Red Hat Enterprise Linux. Candidates will be required to analyze and in some cases resolve issues with one or more systems and the applications running on them.
Performance-based testing means that candidates must perform tasks similar to what they perform on the job.
This exam consists of one section lasting 4 hours.
Scores and reporting Official scores for exams come exclusively from Red Hat Certification Central. Red Hat does not authorize examiners or training partners to report results to candidates directly. Scores on the exam are usually reported within 3 U.S. business days.
Exam results are reported as total scores. Red Hat does not report performance on individual items, nor will it provide additional information upon request.
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