EX342: Red Hat Certified Linux Diagnostics and Troubleshooting

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Why Red Hat Linux Diagnostics & Troubleshooting Training from GRRAS?

Build in-demand enterprise Linux troubleshooting skills with Red Hat Certified Linux Diagnostics and Troubleshooting (EX342) training from GRRAS. Learn to systematically diagnose and resolve hardware, storage, networking, security, package management, authentication, and application issues through hands-on labs and real-world troubleshooting scenarios. This exam-focused, practical training prepares you to confidently handle critical production incidents, earn a globally recognized Red Hat certification, and step into advanced roles such as Linux Support Engineer, System Administrator, and Site Reliability Engineer (SRE).

Course Snapshot

The Red Hat Certified Linux Diagnostics and Troubleshooting (EX342) course delivers focused, hands-on training to help you diagnose, troubleshoot, and resolve complex Linux system issues in enterprise environments. Through practical labs and real-world scenarios, you will learn to identify hardware, storage, networking, security, package management, authentication, and application problems—building the skills required to restore system stability and handle critical production incidents with confidence.

EX342 Syllabus Structure

What is Red Hat Certified Linux Diagnostics and Troubleshooting (EX342)?

The Red Hat Certified Linux Diagnostics and Troubleshooting (EX342) training is a hands-on, exam-focused program designed to teach you how to systematically diagnose, troubleshoot, and resolve complex Linux system issues in enterprise environments. This course prepares you to handle real-world production problems where speed, accuracy, and methodology are critical.

Through structured modules and practical labs, you will learn to identify and fix issues related to hardware, file systems, storage, networking, package management, security (SELinux), authentication, and applications, ensuring system stability and uptime in mission-critical Linux systems.

Course Structure & Timeline

Total Duration: 40+ hours of instructor-led Linux troubleshooting training
Regular Format: 20 days (ideal for working professionals)
Fast-Track Format: 6 days (accelerated, intensive program)
Delivery Mode: Hands-on labs, guided troubleshooting exercises, and exam-oriented practice
Technology Stack: Red Hat Enterprise Linux (exam-aligned version), system diagnostic and troubleshooting tools

Who Should Enroll

Linux System Administrators: Professionals managing enterprise Linux environments
Linux Support & Operations Engineers: Engineers responsible for incident response and system stability
DevOps & SRE Professionals: Practitioners troubleshooting Linux-based infrastructure and services
IT Infrastructure Engineers: Teams supporting production Linux systems and applications
Senior Technical Support Engineers: Professionals handling advanced Linux troubleshooting cases
Certification Aspirants: Learners preparing for the Red Hat EX342 certification exam

EX342: Red Hat Certified Linux Diagnostics and Troubleshooting

Identify and Resolve Hardware Problems

Detect faulty hardware components using system logs and tools
Manage hardware resource limits and parameters
Replace or reconfigure faulty hardware components

Diagnose and Troubleshoot File System Issues

Identify and repair corrupted or inconsistent file systems
Recover data from inaccessible or damaged storage partitions
Use tools like fsck and mount utilities to restore file systems

Resolve iSCSI and Storage Connectivity Issues

Diagnose and fix iSCSI connection and authentication problems
Verify iSCSI sessions, targets, and initiators
Restore reliable connectivity to storage access

Resolve Package Management Issues

Identify and fix package dependency and installation failures
Recover or rebuild corrupted RPM databases
Detect and resolve repository configuration issues

Troubleshoot and Fix Network Connectivity Issues

Use diagnostic tools to test and restore network connectivity
Identify and resolve routing, DNS, or firewall issues
Inspect and repair network configuration parameters

Diagnose and Troubleshoot Application Issues

Identify library dependency and configuration problems
Detect memory leaks or performance bottlenecks
Use debugging tools to trace application failures

Identify and Fix SELinux Issues

Detect SELinux denials and analyze audit logs
Adjust SELinux contexts and policies to restore functionality
Use SELinux troubleshooting tools effectively

Identify and Fix Authentication Issues

Diagnose authentication failures in PAM configurations
Resolve LDAP and Kerberos identity management errors
Verify credential validity and access control changes

Gather Information for Third-Party Investigation

Collect diagnostic data and system snapshots for vendors
Generate logs and analysis reports using standard tools
Compile and execute system scripts for performance tracking

EX342: Red Hat Certified Linux Diagnostics and Troubleshooting Tool Kits

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Please read the following instructions carefully before you begin the test.

The test consists of a set number of multiple-choice questions.
Each question has four options, out of which only one option is correct.
You must complete the test within the allocated time limit.
You will be awarded 4 marks for each correct answer.
There is no negative marking for incorrect answers.
Ensure you have a stable internet connection before starting the test.
Once you begin, the timer will start automatically, and you cannot pause or restart the test.

Why Take This Test? (How It Helps You)

🏆 Boost Confidence: Regular testing helps you build accuracy, reduce exam fear, and strengthen conceptual understanding.
🕒 Time Management: Learn to solve questions effectively under real-time pressure.
📊 Performance Insight: Identify your strong and weak areas for focused improvement.
🎯 Exam-Like Experience: Experience a realistic test environment with structured scoring.
📚 Smart Preparation: Refine your study strategy using feedback and detailed analytics.