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CompTIA JK0-023 : CompTIA Network+ certification
- Exam Code: JK0-023
- Exam Name: CompTIA Network+ certification
- Updated: Oct 05, 2026 Q&As: 995 Questions and Answers
About CompTIA JK0-023 Exam
With exam fees already spent once, most retake candidates want one thing above all: preparation that leaves no surprises on test day. DumpsTests prepares you thoroughly for the CompTIA Network+ certification exam with 995 practice questions organized around the real exam structure.
CompTIA JK0-023 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Network Troubleshooting | 20% | - IP addressing and routing problems - Cable and connectivity issues - Troubleshooting methodology - Wireless and security troubleshooting |
| Network Architecture | 20% | - Network services and cloud concepts - OSI and TCP/IP models - Routing and switching technologies - Network topologies and types - IP addressing and subnetting |
| Industry Standards, Practices, and Network Theory | 20% | - Safety and environmental procedures - Network evolution and emerging technologies - Standards and protocols - Communication and professional conduct |
| Network Security | 20% | - Authentication and access control - Encryption and secure protocols - Threats, vulnerabilities, and mitigation - Security devices and technologies |
| Network Operations | 20% | - Network policies and best practices - Remote access and management - Business continuity and disaster recovery - Monitoring and documentation |
Getting Back on Track for the CompTIA Network+ certification Exam
The CompTIA Network+ certification exam is scored on a scale where 720 (scale 100–900) is required to pass, and the official exam fee is $311–$338 USD.
No mandatory prerequisites; recommended: CompTIA A+ certification and 9–12 months of networking experience; only available to CompTIA Academy Partners
You can confirm the current eligibility requirements on the official JK0-023 exam page before you register.
The CompTIA Network+ certification exam contains Up to 90 questions, and you will have 90 minutes minutes to complete them. Practicing under the same time pressure is one of the most effective ways to prepare for a retake.
Each of the three versions — PDF, PC test engine, and online test engine — has its own strengths, and the fastest way to find your fit is to try them. Free demos are available for every version, so download each one and compare how the questions, layout, and testing modes feel before you commit.
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The CompTIA Network+ certification practice questions are organized around the official exam objectives. Key topics include:
- Network Operations (20%)
- Industry Standards, Practices, and Network Theory (20%)
- Network Security (20%)
Studying topic by topic helps you find the weak areas that cost you points last time.
Many candidates combine practice questions with official training. Recommended options include:
This package includes 995 practice questions for the CompTIA Network+ certification exam, with verified answers reviewed by an experienced team of IT experts and certified professionals.
You can register for the CompTIA Network+ certification exam through the official channels:
The CompTIA Network+ certification exam requires a score of 720 (scale 100–900) to pass, and the official registration fee is $311–$338 USD. Retake candidates should budget for both the exam fee and a preparation tool that is actually worth the money.
CompTIA Network+ certification Sample Questions:
Question #1
Which of the following WAN technologies uses an analog phone line to transmit data?
- A. DSL
- B. Satellite
- C. Cable
- D. LTE
Correct Answer: A 🗳️
Question #2
Which of the following performance optimization techniques would be MOST beneficial for a network-wide VoIP setup? (Select TWO).
- A. Traffic shaping
- B. Caching engines
- C. Load balancing
- D. Proxy server
- E. Quality of service
Correct Answer: A,E 🗳️
Question #3
A user is unable to print to a network printer. Which of following is the FIRST step that a technician should take to troubleshoot the issue?
- A. Identify the problem.
- B. Implement preventative measures.
- C. Establish a plan of action to resolve the problem.
- D. Establish a theory of probable cause.
Correct Answer: A 🗳️
Question #4
A technician has low signal strength connecting two wireless bridges. Which of the following could be the problem?
- A. WPA 2 encryption
- B. Opposing antenna polarizations
- C. Short distance between antennas
- D. Low PoE wattage
Correct Answer: B 🗳️
Question #5
A network administrator is tasked with blocking unwanted spam which is being relayed by
an internal email server. Which of the following is the FIRST step in preventing spam that is originating from bots on the network?
- A. Closing off port 25 on the firewall
- B. Closing off port 53 on the firewall
- C. Turning off the SMTP service on the email server
- D. Turning off the IMAP service on the email server
Correct Answer: A 🗳️
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