- Exam Code: JK0-023
- Exam Name: CompTIA Network+ certification
- Updated: Aug 31, 2026
- Q & A: 995 Questions and Answers
CompTIA Network+ certification : JK0-023 exam
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CompTIA JK0-023 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Network Security | 20% | - Authentication and access control - Security devices and technologies - Threats, vulnerabilities, and mitigation - Encryption and secure protocols |
| Network Troubleshooting | 20% | - IP addressing and routing problems - Troubleshooting methodology - Cable and connectivity issues - Wireless and security troubleshooting |
| Network Operations | 20% | - Network policies and best practices - Monitoring and documentation - Remote access and management - Business continuity and disaster recovery |
| Industry Standards, Practices, and Network Theory | 20% | - Network evolution and emerging technologies - Safety and environmental procedures - Standards and protocols - Communication and professional conduct |
| Network Architecture | 20% | - Routing and switching technologies - OSI and TCP/IP models - Network services and cloud concepts - Network topologies and types - IP addressing and subnetting |
CompTIA Network+ certification Sample Questions:
Question 1
Which of the following attacks creates a buffer overflow to stop access to a system?
A. Man-in-the-middle
B. Netstat
C. DoS
D. Blue jacking
Question 2
Which of the following allows 802.11n higher transfer speeds than the previous wireless standards?
A. Dual frequency
B. Enhanced encryption
C. Backwards compatibility
D. MIMO technology
Question 3
Which of the following types of network would be set up in an office so that customers could access the Internet but not be given access to internal resources such as printers and servers?
A. Wireless network
B. Core network
C. Quarantine network
D. Guest network
Question 4
An administrator would like to decrease the load time of common websites that employees review daily. Which of the following can be installed?
A. Load balancing
B. Caching server
C. Fault tolerance
D. VPN concentrator
Question 5
A network technician must utilize multimode fiber to uplink a new networking device. Which of the following Ethernet standards could the technician utilize? (Select TWO).
A. 1000Base-LR
B. 10GBase-LR
C. 1000Base-T
D. 1000Base-SR
E. 10GBase-T
F. 10GBase-SR
Solutions:
| Question 1 Answer: C | Question 2 Answer: D | Question 3 Answer: D | Question 4 Answer: B | Question 5 Answer: D,F |
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