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

EX442
  • Exam Code: EX442
  • Exam Name: Red Hat Certified Specialist in Linux Performance Tuning exam
  • Updated: Sep 14, 2026
  • Q & A: 0 Questions and Answers

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About RedHat EX442 Exam

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RedHat EX442 Exam Overview:

Certification Vendor:Red Hat
Exam Name:Red Hat Certified Specialist in Linux Performance Tuning Exam
Exam Number:EX442
Passing Score:Not publicly disclosed by Red Hat
Real Exam Qty:Performance-based practical exam (no fixed question count)
Related Certifications:Red Hat Certified Architect (RHCA)
Red Hat Certified Specialist in Performance Tuning
Exam Price:Varies by region
Available Languages:English
Exam Duration:240 minutes
Exam Format:Hands-on lab exam, Performance-based practical tasks
Certificate Validity Period:3 years
Exam Way:Performance-based practical exam delivered at a Red Hat testing center, partner location, or eligible remote testing environment depending on regional availability.
Pre Condition:Red Hat recommends RHCSA certification or equivalent experience. RH442 Red Hat Enterprise Linux Performance Tuning course or extensive performance tuning experience is strongly recommended.
Official Syllabus URL:https://www.redhat.com/en/services/training/ex442-exame-do-red-hat-certified-specialist-linux-performance-tuning

RedHat EX442 Exam Syllabus Topics:

SectionObjectives
Topic 1: Tune Running Systems- Apply tuning profiles
  • 1. Configure and manage tuned profiles
- Manage process scheduling
  • 1. Modify process priorities
- Control resource usage
  • 1. Manage control groups (cgroups)
Topic 2: Configure Disk and File Subsystems- Analyze storage performance
  • 1. Evaluate disk I/O behavior
- Tune storage subsystems
  • 1. Optimize file system and storage performance
Topic 3: Tune Memory Utilization- Analyze memory usage
  • 1. Identify memory bottlenecks
- Optimize memory performance
  • 1. Adjust memory-related settings
Topic 4: Tune Network Performance- Optimize network settings
  • 1. Tune network stack and configuration parameters
- Analyze network behavior
  • 1. Measure network throughput and latency
Topic 5: Monitor and Alter Kernel Behavior- Manage kernel runtime parameters
  • 1. Use sysctl
  • 2. Use /sys
  • 3. Use /proc/sys
- Configure kernel modules
  • 1. Modify kernel module parameters
Topic 6: Analyze System and Application Performance- Evaluate application performance
  • 1. Compare application implementations based on performance characteristics
- Analyze processes and applications
  • 1. Use Valgrind
  • 2. Use ps and top
- Trace and diagnose behavior
  • 1. Use eBPF tools
  • 2. Configure and use SystemTap
Topic 7: Use Utilities to Analyze System Behavior- Analyze and report system and application behavior
  • 1. Use vmstat, iostat, mpstat, sar, top, powertop, gnome-system-monitor and similar tools
  • 2. Collect and interpret performance metrics
- Use Performance Co-Pilot
  • 1. Analyze system behavior with PCP
- Profile hardware configurations
  • 1. Use sosreport
  • 2. Use dmesg
  • 3. Use dmidecode

The RedHat EX442 Exam: What to Know

Red Hat recommends RHCSA certification or equivalent experience. RH442 Red Hat Enterprise Linux Performance Tuning course or extensive performance tuning experience is strongly recommended. Rules on eligibility change occasionally, so confirm the current requirements on the official page (official EX442 exam page) before you pay the fee.

240 minutes for Performance-based practical exam (no fixed question count) questions. Adapt to the clock now: the Exam4Tests SOFT and APP versions let you control test time and track scores, so the real EX442 exam feels like a rehearsal you've already done.

Delivery: payment triggers an automatic email within a minute — download immediately, install without limits, and if nothing arrives within 2 hours our round-the-clock support helps (check spam first). Refund: unlike vendors with slow, cumbersome processes, we keep it clear — take the corresponding EX442 exam within 60 days of purchase, and if you fail, send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam; the full refund is processed within 7 days. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Or exchange for two equal-value products free.

Yes — three different free RedHat Red Hat Certified Specialist in Linux Performance Tuning demos are available to download. Do the demo test first to inspect the value, then decide. Purchases include 365 days of free updates, renewable at 50% off.

The RedHat Red Hat Certified Specialist in Linux Performance Tuning blueprint covers 7 domains — including Tune Network Performance, Analyze System and Application Performance, Monitor and Alter Kernel Behavior. Weightings point you to the heavy hitters; schedule your review accordingly. The complete outline above lists every subtopic.

Varies by region per attempt, with Not publicly disclosed by Red Hat as the passing score. Since a failed attempt bills again, rehearse with the 0 practice questions from Exam4Tests until your tracked scores clear the mark consistently.

The RedHat Red Hat Certified Specialist in Linux Performance Tuning is RedHat's official exam for the Red Hat Certified Architect (RHCA) credential (Specialist level). Before anything else, verify the exam code and name match what you need — then build a plan around the official objectives. Related credentials include Red Hat Certified Specialist in Performance Tuning, Red Hat Certified Architect (RHCA).

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