CompTIA JK0-023 exam dumps - CompTIA Network+ certification

  • Exam Code: JK0-023
  • Exam Name: CompTIA Network+ certification
  • Updated: Sep 08, 2026     Q & A: 995 Questions and Answers

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CompTIA JK0-023 Exam Syllabus Topics:

SectionWeightObjectives
Network Troubleshooting20%- Troubleshooting methodology
- Cable and connectivity issues
- IP addressing and routing problems
- Wireless and security troubleshooting
Network Security20%- Threats, vulnerabilities, and mitigation
- Authentication and access control
- Security devices and technologies
- Encryption and secure protocols
Network Operations20%- Business continuity and disaster recovery
- Remote access and management
- Network policies and best practices
- Monitoring and documentation
Network Architecture20%- Network topologies and types
- IP addressing and subnetting
- Routing and switching technologies
- OSI and TCP/IP models
- Network services and cloud concepts
Industry Standards, Practices, and Network Theory20%- Network evolution and emerging technologies
- Standards and protocols
- Safety and environmental procedures
- Communication and professional conduct

CompTIA Network+ certification Sample Questions:

Question #1

Which of the following capabilities of a firewall allows Zach, an administrator, to block traffic based on key words determined by the company?

  • A. Signature identification
  • B. Stateless traffic monitor
  • C. Stateful traffic monitor
  • D. Content filter
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #2

Which of the following exist at layer three of the OSI model? (Select TWO).

  • A. NIC
  • B. Router
  • C. Cable
  • D. Switch
  • E. Frame
  • F. Packet
Reveal Solution  Discussion  0

Correct Answer: B,F  🗳️

Question #3

Which of the following technologies can change channel widths?

  • A. Bluetooth
  • B. 802.11n
  • C. 802.11b
  • D. 802.11a
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

A user at a hotel sees two SSIDs; both are called "HotelWireless". After the PC connects to one of the APs, the user notices their browser homepage has been changed. Which of the following BEST describes this AP?

  • A. Man-in-the-middle
  • B. DDoS
  • C. Evil twin
  • D. War driving
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #5

Which of the following protocols is used to securely connect to a multi-layer switch?

  • A. SSH
  • B. Telnet
  • C. HTTP
  • D. SMTP
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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