The performance-based Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting exam (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.
By passing this exam, you become a Red Hat Certified Specialist, which also counts toward becoming a Red Hat® Certified Architect (RHCA®).
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Exam Name: Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting exam
Exam Code: EX342
Duration: 240 minutes
Related certification: Red Hat Certified Specialist
Prerequisites for this exam:
- 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.
EX342 Exam Topics
- 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
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