RedHat EX442 : Red Hat Certified Specialist in Linux Performance Tuning exam

EX442 real exams

Exam Code: EX442

Exam Name: Red Hat Certified Specialist in Linux Performance Tuning exam

Updated: Sep 20, 2026

Q & A: 0 Questions and Answers

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RedHat EX442 Exam Overview:

Certification Vendor:Red Hat
Exam Name:Red Hat Certified Specialist in Linux Performance Tuning Exam (EX442)
Exam Number:EX442
Exam Format:Hands-on lab environment, Performance-based practical exam
Available Languages:English
Real Exam Qty:Performance-based tasks (no fixed question count)
Certificate Validity Period:3 years
Related Certifications:Red Hat Certified System Administrator (RHCSA)
Red Hat Certified Engineer (RHCE)
Exam Duration:240 minutes
Passing Score:210/300
Exam Price:USD 400-500 (varies by region)
Exam Way:In-person or remote performance-based exam delivered in a controlled lab environment
Pre Condition:Recommended: RHCSA-level knowledge or equivalent Linux system administration experience

RedHat EX442 Exam Syllabus Topics:

SectionObjectives
Memory Management- Memory leak detection
  • 1. Process memory profiling
    • 2. OOM killer behavior analysis
      - Virtual memory tuning
      • 1. Kernel memory parameters tuning
        • 2. Swap usage optimization
          Disk I/O Performance- Filesystem tuning
          • 1. Disk scheduler configuration
            • 2. Mount options optimization
              - Storage performance analysis
              • 1. iostat and iotop usage
                • 2. Identifying I/O bottlenecks
                  System Performance Analysis- Performance baseline establishment
                  • 1. Interpreting system load averages
                    • 2. Using historical metrics to identify degradation
                      - System resource monitoring and bottleneck identification
                      • 1. Memory usage and swap behavior analysis
                        • 2. CPU utilization analysis using standard Linux tools
                          System Profiling and Kernel Tuning- Performance profiling tools
                          • 1. perf and sar usage
                            • 2. Tracing system calls
                              - Kernel parameter tuning
                              • 1. cgroups resource management
                                • 2. sysctl configuration
                                  CPU and Process Tuning- Process scheduling and prioritization
                                  • 1. nice and renice usage
                                    • 2. CPU affinity and taskset configuration
                                      - CPU performance optimization
                                      • 1. Load balancing across cores
                                        • 2. Identifying CPU-bound processes
                                          Network Performance Tuning- Network throughput optimization
                                          • 1. Bandwidth and latency analysis
                                            • 2. TCP tuning parameters
                                              - Network troubleshooting tools
                                              • 1. Packet analysis basics
                                                • 2. ss, netstat, and ip tools usage

                                                  EX442 Exam Facts: What to Know Before You Commit

                                                  RedHat recommends the following official training resources:

                                                  Choose the format that fits your schedule, then reinforce it with regular question practice.

                                                  The latest exam information lists Performance-based tasks (no fixed question count) questions for the EX442 exam, to be completed within 240 minutes minutes. Knowing the format cold is half the battle — timed practice handles the other half.

                                                  These are the core domains of the RedHat Red Hat Certified Specialist in Linux Performance Tuning blueprint:

                                                  • Memory Management
                                                  • Disk I/O Performance
                                                  • System Profiling and Kernel Tuning

                                                  The remaining domains appear in the full official outline, all of which our bank addresses.

                                                  RedHat sets the following prerequisites for the RedHat Red Hat Certified Specialist in Linux Performance Tuning: Recommended: RHCSA-level knowledge or equivalent Linux system administration experience.

                                                  Validity is maintained, not assumed. Our dedicated IT team checks the system and pushes new versions to the site continuously, so the EX442 bank on sale is always the latest — with expert-verified answers across the RedHat Red Hat Certified Specialist in Linux Performance Tuning objectives. You can also pick the format that fits your devices: an easy-to-read PDF, a Windows PC test engine, or a browser-based online engine for Windows, Mac, Android, and iOS. Questions? Support replies to instant messages and emails within two hours.

                                                  Upon successful payment, the complete materials are available immediately: a download link on screen and an automatic email to your mailbox within about a minute. If nothing arrives within two hours, check spam and contact support. Every purchase carries a 365-day service warranty — you can download the latest valid version free whenever it is released, no matter when you bought — and a 50% renewal discount follows when the period ends.

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                                                  Yes, we keep our promises — in writing. If you fail the corresponding exam within 60 days of purchase, email us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; we process verified refunds in full within seven days. The exclusions are plain: exams taken within three days of purchase, candidate names that do not match the payer, and free or expired products. If you prefer, we will exchange your product for two others of equal value at no charge.

                                                  As of the latest information, the EX442 exam's passing score is 210/300 and the registration fee is USD 400-500 (varies by region). RedHat can adjust either figure, so verify both on the official site before you book.

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