CompTIA Strata Fundamentals of PC Technology : JK0-U21 valid dumps

JK0-U21 real exams

Exam Code: JK0-U21

Exam Name: CompTIA Strata Fundamentals of PC Technology Exam

Updated: Jul 24, 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: Networking Fundamentals- Connectivity basics
          • 1. Basic troubleshooting connectivity issues
            • 2. Wired and wireless connections
              - Basic networking concepts
              • 1. Network devices (router, switch, modem)
                • 2. LAN, WAN, and internet fundamentals
                  Topic 3: 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. Input/output devices and connectivity
                        • 2. Common hardware interfaces
                          Topic 4: Security Fundamentals- Basic security concepts
                          • 1. Passwords and authentication basics
                            • 2. Malware awareness
                              - Safe computing practices
                              • 1. Data protection fundamentals
                                • 2. Safe browsing and email usage
                                  Topic 5: Troubleshooting and Support- Basic troubleshooting methodology
                                  • 1. Identifying common PC issues
                                    • 2. Basic diagnostic steps
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