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CompTIA JK0-U21 Exam Syllabus Topics:

SectionObjectives
Topic 1: Computer Hardware Fundamentals- System components (CPU, RAM, storage devices)
  • 1. Memory types and storage devices overview
    • 2. Basic CPU architecture and function
      - Peripheral devices
      • 1. Common hardware interfaces
        • 2. Input/output devices and connectivity
          Topic 2: Troubleshooting and Support- Basic troubleshooting methodology
          • 1. Basic diagnostic steps
            • 2. Identifying common PC issues
              Topic 3: Networking Fundamentals- Connectivity basics
              • 1. Wired and wireless connections
                • 2. Basic troubleshooting connectivity issues
                  - Basic networking concepts
                  • 1. LAN, WAN, and internet fundamentals
                    • 2. Network devices (router, switch, modem)
                      Topic 4: Operating Systems and Software Basics- Software types
                      • 1. Basic software installation concepts
                        • 2. Application vs system software
                          - Operating system concepts
                          • 1. User interface concepts
                            • 2. File systems and basic OS functions
                              Topic 5: Security Fundamentals- Safe computing practices
                              • 1. Safe browsing and email usage
                                • 2. Data protection fundamentals
                                  - Basic security concepts
                                  • 1. Malware awareness
                                    • 2. Passwords and authentication basics

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