Exam Code: JK0-023
Exam Name: CompTIA Network+ certification
Certification Provider: CompTIA
Corresponding Certification: Network+

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Updated: Aug 14, 2026

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CompTIA JK0-023 Exam Overview:

Certification Vendor:	CompTIA
Exam Name:	CompTIA Network+ (JK0-023) Certification Exam
Exam Number:	JK0-023
Related Certifications:	CompTIA A+ CompTIA Security+
Exam Format:	Multiple Choice, Performance-based questions (varies by version)
Available Languages:	English
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:

Section	Objectives
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 Media and Topologies	- Wireless standards 1. 802.11 standards overview - Topologies 1. Star, mesh, bus, and hybrid topologies
Network Technologies	- Cabling and connectors 1. Copper and fiber media types 2. Ethernet standards and wiring schemes - Network devices and infrastructure 1. Wireless networking components 2. Routers, switches, hubs, and bridges
Network Management	- Network monitoring and troubleshooting 1. Performance monitoring concepts 2. Common network troubleshooting tools - Network configuration and documentation 1. IP addressing basics (IPv4/IPv6) 2. Subnetting fundamentals

CompTIA Network+ certification Sample Questions:

1. Which of the following protocols is the BEST choice for retrieving email on multiple devices?

A) IMAP4
B) SMTP
C) SNMPv3
D) FTP

2. Joe, a network technician, needs to connect to a computer in a factory environment 250 meters (820 feet) from the IDF. Which of the following LAN technologies would be BEST to use?

A) 100BaseFX
B) Coaxial
C) 10GBaseT
D) MPLS

3. Which of the following network performance methods would Lisa, a technician, use with SIP phones?

A) QoS
B) Load balancing
C) Caching engines
D) CARP

4. Which of the following security devices is used in providing packet and MAC address filtering services for the network?

A) IDS
B) Host-based proxy server
C) IPS
D) Network-based firewall

5. Joe, a network administrator, needs to forward HTTP traffic from a SOHO firewall public IP to the internal web server's private IP. Which of the following can Joe implement?

A) DNS
B) RAS
C) NAT
D) PKI

Solutions:

Question # 1
Answer: A

Question # 2
Answer: A

Question # 3
Answer: A

Question # 4
Answer: D

Question # 5
Answer: C

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