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CompTIA Network+ JK0-023

JK0-023

Exam Code: JK0-023

Exam Name: CompTIA Network+ certification

Updated: Oct 12, 2026

Q & A: 995 Questions and Answers

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CompTIA Network+ JK0-023 CompTIA Network+ certification Exams

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CompTIA JK0-023 Exam Syllabus Topics:

SectionWeightObjectives
Network Operations20%- Network documentation and monitoring
- Change, configuration and lifecycle management
Industry Standards, Practices and Network Theory16%- Best practices in networking environments
- Fundamental network theory and standards
Network Security18%- Securing wired and wireless networks
- Security concepts and threat mitigation
Troubleshooting24%- Network troubleshooting methodology
- Using tools to diagnose connectivity issues
Network Architecture22%- OSI model and network standards
- Network topology and architecture basics

CompTIA Network+ certification Sample Questions:

Question #1
The process of restricting internal web traffic to an employee-only website based upon Layer 3 addresses is known as which of the following?

A. Traffic shaping
B. IP filtering
C. MAC filtering
D. Session filtering


Question #2
A network administrator is configuring PXE boot to reimage a computer lab. Which of the following must be configured on the existing DHCP server to specify the IP address of the imaging server from which the clients must boot?

A. Lease
B. Scope
C. Reservation
D. Option


Question #3
A network administrator notices that load balancing is not working properly on the web cluster as previously configured. In speaking with management, a change to the IP addressing scheme was made yesterday which possibly affected one member of the cluster. Due to the timing of the events, the administrator theorizes that this change caused the problem. Which of the following should the administrator do NEXT?

A. Test the theory by analyzing logs
B. Create a plan of action to present to management
C. Change the IP address back to its previous state
D. Escalate to the management team


Question #4
A network technician is configuring a wireless network. To avoid interference from other wireless networks in the area, the technician should change which setting?

A. Firewall rule
B. Encryption
C. Channel
D. SSID


Question #5
Which of the following technologies allows for redundant links within a Layer 2 segment?

A. OSPF
B. Port Mirroring
C. RIP
D. Spanning Tree


Solutions:

Question #1
Correct Answer: B
Question #2
Correct Answer: D
Question #3
Correct Answer: A
Question #4
Correct Answer: C
Question #5
Correct Answer: D

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