CompTIA JK0-U21 exam : CompTIA Strata Fundamentals of PC Technology Exam

JK0-U21 Exam Simulator
  • Exam Code: JK0-U21
  • Exam Name: CompTIA Strata Fundamentals of PC Technology Exam
  • Updated: Jul 14, 2026
  • Q & A: 241 Questions and Answers

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CompTIA JK0-U21 Exam Syllabus Topics:

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

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