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100% CompTIA JK0-023 Guaranteed Success With Testing Engine

Exam Code: JK0-023

Exam Name: CompTIA Network+ certification

Updated: Sep 08, 2026

Number: 995 Q&As with Testing Engine

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CompTIA JK0-023 Exam Overview:

Certification Vendor:CompTIA
Exam Name:CompTIA Network+ (JK0-023) Certification Exam
Exam Number:JK0-023
Available Languages:English
Related Certifications:CompTIA A+
CompTIA Security+
Exam Format:Multiple Choice, Performance-based questions (varies by version)
Recommended Training:CompTIA Network+ Training
Exam Registration:CompTIA Official Certification Page
Sample Questions:CompTIA JK0-023 Sample Questions
Exam Way:Computer-based exam delivered via testing centers or online proctored exam (depending on provider availability).
Pre Condition:No mandatory prerequisites; CompTIA recommends basic networking knowledge or CompTIA A+ certification.
Official Syllabus URL:https://www.comptia.org/certifications/network

CompTIA JK0-023 Exam Syllabus Topics:

SectionObjectives
Topic 1: Network Security- Security principles
  • 1. Encryption and secure protocols
    • 2. Authentication and authorization concepts
      - Network attacks and mitigation
      • 1. Firewalls and access control
        • 2. Common network threats
          Topic 2: Network Management- Network monitoring and troubleshooting
          • 1. Performance monitoring concepts
            • 2. Common network troubleshooting tools
              - Network configuration and documentation
              • 1. Subnetting fundamentals
                • 2. IP addressing basics (IPv4/IPv6)
                  Topic 3: Network Technologies- Network devices and infrastructure
                  • 1. Routers, switches, hubs, and bridges
                    • 2. Wireless networking components
                      - Cabling and connectors
                      • 1. Copper and fiber media types
                        • 2. Ethernet standards and wiring schemes
                          Topic 4: Network Media and Topologies- Wireless standards
                          • 1. 802.11 standards overview
                            - Topologies
                            • 1. Star, mesh, bus, and hybrid topologies

                              CompTIA Network+ certification Sample Questions:

                              Question #1

                              A network administrator is troubleshooting an intermittent network issue between devices that have a particularly long cable run. The issue was escalated to a network designer who alluded to potential attenuation issues. Which of the following BEST describes what the
                              network designer was referring to?

                              A. Cross-talk
                              B. Bad connectors
                              C. EMI / Interference
                              D. dB loss


                              Question #2

                              Which of the following layers of the OSI model is between the Data Link and Transport layers?

                              A. Physical
                              B. Application
                              C. Session
                              D. Network


                              Question #3

                              Honeypots and honeynets are different in which of the following ways?

                              A. Honeypots are usually servers and honeynets are routers and switches.
                              B. Honeynets are managed collections of honeypots.
                              C. Honeynets require specialized hardware to implement.
                              D. Honeypots only test software security, not hardware.


                              Question #4

                              An administrator has received a recommendation against deploying WEP as a wireless encryption protection scheme. Which of the following is MOST likely the reason?

                              A. WEP is not well supported.
                              B. WEP's IV is too small.
                              C. WEP uses RC4 which is easily accessible and not secure.
                              D. WEP uses plain text.


                              Question #5

                              Kurt, a user, is unable to logon to his domain from his desktop PC. A cable certifier is used and shows a high value of NEXT. Which of the following represents the cause?

                              A. Split cables
                              B. TX/RX reversed
                              C. DB loss
                              D. Crosstalk


                              Solutions:

                              Question #1
                              Answer: D
                              Question #2
                              Answer: D
                              Question #3
                              Answer: B
                              Question #4
                              Answer: B
                              Question #5
                              Answer: D

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