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Download RedHat : EX442 Questions & Answers as PDF & Test Software

Last Updated: Jul 30, 2026

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RedHat EX442 Exam Syllabus Topics:

SectionObjectives
Topic 1: CPU and Process Tuning- Process scheduling and prioritization
  • 1. nice and renice usage
    • 2. CPU affinity and taskset configuration
      - CPU performance optimization
      • 1. Identifying CPU-bound processes
        • 2. Load balancing across cores
          Topic 2: 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 3: Network Performance Tuning- Network throughput optimization
                  • 1. TCP tuning parameters
                    • 2. Bandwidth and latency analysis
                      - Network troubleshooting tools
                      • 1. ss, netstat, and ip tools usage
                        • 2. Packet analysis basics
                          Topic 4: System Profiling and Kernel Tuning- Kernel parameter tuning
                          • 1. cgroups resource management
                            • 2. sysctl configuration
                              - Performance profiling tools
                              • 1. perf and sar usage
                                • 2. Tracing system calls
                                  Topic 5: Memory Management- Virtual memory tuning
                                  • 1. Swap usage optimization
                                    • 2. Kernel memory parameters tuning
                                      - Memory leak detection
                                      • 1. Process memory profiling
                                        • 2. OOM killer behavior analysis
                                          Topic 6: Disk I/O Performance- Filesystem tuning
                                          • 1. Mount options optimization
                                            • 2. Disk scheduler configuration
                                              - Storage performance analysis
                                              • 1. iostat and iotop usage
                                                • 2. Identifying I/O bottlenecks
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