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

EX442 actual test
  • Exam Code: EX442
  • Exam Name: Red Hat Certified Specialist in Linux Performance Tuning exam
  • Updated: Sep 15, 2026
  • Q & A: 0 Questions and Answers
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RedHat EX442 Exam Syllabus Topics:

SectionObjectives
Topic 1: Memory Management- Memory leak detection
  • 1. Process memory profiling
    • 2. OOM killer behavior analysis
      - Virtual memory tuning
      • 1. Swap usage optimization
        • 2. Kernel memory parameters tuning
          Topic 2: 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
                  Topic 3: Network Performance Tuning- Network throughput optimization
                  • 1. Bandwidth and latency analysis
                    • 2. TCP tuning parameters
                      - Network troubleshooting tools
                      • 1. ss, netstat, and ip tools usage
                        • 2. Packet analysis basics
                          Topic 4: 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
                                  Topic 5: System Performance Analysis- System resource monitoring and bottleneck identification
                                  • 1. Memory usage and swap behavior analysis
                                    • 2. CPU utilization analysis using standard Linux tools
                                      - Performance baseline establishment
                                      • 1. Interpreting system load averages
                                        • 2. Using historical metrics to identify degradation
                                          Topic 6: CPU and Process Tuning- CPU performance optimization
                                          • 1. Load balancing across cores
                                            • 2. Identifying CPU-bound processes
                                              - Process scheduling and prioritization
                                              • 1. nice and renice usage
                                                • 2. CPU affinity and taskset configuration

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