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CompTIA Network+ certification - JK0-023 real prep

JK0-023
  • Exam Code: JK0-023
  • Exam Name: CompTIA Network+ certification
  • Updated: Sep 07, 2026
  • Q & A: 995 Questions and Answers
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  • PDF Price: $59.98
  • CompTIA JK0-023 Value Pack

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About CompTIA JK0-023: CompTIA Network+ certification

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CompTIA JK0-023 Exam Syllabus Topics:

SectionObjectives
Network Media and Topologies- Wireless standards
  • 1. 802.11 standards overview
    - Topologies
    • 1. Star, mesh, bus, and hybrid topologies
      Network Security- Network attacks and mitigation
      • 1. Firewalls and access control
        • 2. Common network threats
          - Security principles
          • 1. Encryption and secure protocols
            • 2. Authentication and authorization concepts
              Network Management- Network monitoring and troubleshooting
              • 1. Common network troubleshooting tools
                • 2. Performance monitoring concepts
                  - Network configuration and documentation
                  • 1. IP addressing basics (IPv4/IPv6)
                    • 2. Subnetting fundamentals
                      Network Technologies- Network devices and infrastructure
                      • 1. Wireless networking components
                        • 2. Routers, switches, hubs, and bridges
                          - Cabling and connectors
                          • 1. Ethernet standards and wiring schemes
                            • 2. Copper and fiber media types

                              CompTIA Network+ certification Sample Questions:

                              Question #1

                              Which of the following is a fiber connector that is slightly smaller than a standard copper network cable connector?

                              • A. GBIC
                              • B. MT-RJ
                              • C. BNC
                              • D. SC
                              Answer: B
                              Question #2

                              Which of the following subnet masks indicate a subnet with exactly 254 assignable IP addresses?

                              • A. 255.255.0.0
                              • B. 255.255.255.0
                              • C. 255.0.0.0
                              • D. 255.255.255.254
                              Answer: B
                              Question #3

                              A server that filters traffic between a WAN and a LAN is which of the following?

                              • A. Email server
                              • B. Proxy server
                              • C. Default gateway
                              • D. RAS server
                              Answer: B
                              Question #4

                              Zach, a technician, needs to terminate a CAT5e Ethernet cable to a 110 block. Which of the following tools should he use?

                              • A. Crimper
                              • B. Wire tester
                              • C. Toner probe
                              • D. Punch down
                              Answer: D
                              Question #5

                              Which of the following would be used to test out the security of a specific network by allowing it to receive security attacks?

                              • A. Network based IDS
                              • B. Honeynet
                              • C. Honeypot
                              • D. Vulnerability scanner
                              Answer: B

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