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RedHat Red Hat Certified Architect (RHCA) EX442

EX442

Exam Code: EX442

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

Updated: Aug 17, 2026

Q&A Number: 0 Q&As

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About RedHat EX442 Exam Braindumps

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EX442 exam dumps

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RedHat EX442 Exam Syllabus Topics:

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