Study with JK0-023 Actual Test Questions
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Updated: Aug 31, 2026
No. of Questions: 995 Questions & Answers with Testing Engine
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CompTIA JK0-023 Exam Overview:
| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ |
| Exam Number: | JK0-023 (Network+) |
| Real Exam Qty: | Up to 90 |
| Certificate Validity Period: | Certification valid for 3 years after passing |
| Exam Format: | Performance-based, Multiple choice |
| Passing Score: | 720 (on a scale of 100–900) |
| Available Languages: | English, German, Portuguese, Japanese, Spanish |
| Related Certifications: | CompTIA A+ CompTIA Security+ |
| Exam Duration: | 90 minutes |
| Exam Price: | Approximately USD $350-399 (voucher price varies by region / provider) |
| Sample Questions: | CompTIA JK0-023 Sample Questions |
| Exam Way: | Administered by Pearson VUE; available onsite at test centers or online proctored |
| Pre Condition: | Recommended: CompTIA A+ certification and 9–12 months of networking experience |
| Official Syllabus URL: | https://www.comptia.org/en-us/certifications/network |
CompTIA JK0-023 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Industry Standards, Practices and Network Theory | 16% | - Fundamental network theory and standards - Best practices in networking environments |
| Network Security | 18% | - Security concepts and threat mitigation - Securing wired and wireless networks |
| Network Operations | 20% | - Change, configuration and lifecycle management - Network documentation and monitoring |
| Troubleshooting | 24% | - Using tools to diagnose connectivity issues - Network troubleshooting methodology |
| Network Architecture | 22% | - Network topology and architecture basics - OSI model and network standards |
CompTIA Network+ certification Sample Questions:
Question 1
A user at a small business states that they cannot connect to the Internet via the company's wireless network every time their cordless phone rings. Which of the following is MOST likely occurring?
A. Latency
B. Incorrect encryption type
C. SSID mismatch
D. Interference
Question 2
A network technician is configuring a new firewall for placement into an existing network infrastructure. The existing network is connected to the Internet by a broadband connection. Which of the following represents the BEST location for the new firewall?
A. The firewall should be placed between the broadband connection and the Internet.
B. The firewall should be placed in the Internet cloud.
C. The firewall should be placed inside the local network.
D. The firewall should be placed between the Internet connection and the local network.
Question 3
A technician is connecting a NAS device to an Ethernet network. Which of the following technologies will be used to encapsulate the frames?
A. MS-CHAP
B. HTTPS
C. Fibre channel
D. iSCSI
Question 4
Which of the following DNS record types will be used for mail transfer if the MX record is not found?
A. A
B. CNAME
C. AAAA
D. PTR
Question 5
A user is getting very weak signals while trying to connect to the wireless. Which of the following should the user do to help with signal strength?
A. Call the wireless provider and ask for a T3 circuit.
B. Install a hub to ensure there is a clear path for the cables to run.
C. Move the wireless router to a better location where line of sight is obtained.
D. Reinstall the operating system to the PC to ensure the newest patches are installed.
Solutions:
| Question 1 Answer: D | Question 2 Answer: D | Question 3 Answer: D | Question 4 Answer: A | Question 5 Answer: C |
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