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CompTIA Network+ certification : JK0-023 exam dump
- Exam Code: JK0-023
- Exam Name: CompTIA Network+ certification
- Updated: Aug 26, 2026
- Q&As: 995 Questions and Answers
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CompTIA JK0-023 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Network Technologies | - Network devices and infrastructure
|
| Topic 2: Network Security | - Security principles
|
| Topic 3: Network Management | - Network configuration and documentation
|
| Topic 4: Network Media and Topologies | - Wireless standards
|
CompTIA Network+ certification Sample Questions:
Question 1
Which of the following types of technologies should be used to provide a MAXIMUM 10 GB speed to a multi-mode fiber network?
A. 10GBaseSR
B. 10GBaseT
C. 10GBaseTX
D. 10GBaseER
Question 2
Which of the following protocols is used to send time synchronization updates on a given network?
A. IMAP
B. NTP
C. POP3
D. DNS
Question 3
Ann, a technician, installs a wireless router in a network closet in a large office. She then configures all workstations in various offices on that floor to use the wireless connection. Maximum connection speed at each workstation is 54 Mbps. Some users complain that their network connection is very slow. Which of the following is MOST likely the problem?
A. Users with a slow connection are too far away from the wireless router.
B. Wireless network SSID is incorrect.
C. Workstations were configured with the wrong connection speed on the wireless adapter.
D. Users that cannot connect are configured on the wrong channel.
Question 4
Which of the following is used by RADIUS to encrypt messages between the server and the client?
A. Public key
B. Private key
C. Shared secret
D. CSU/DSU
Question 5
Which two layers of the OSI model make up the TCP/IP model Network Interface layer?
A. Physical and Data Link
B. Session and Presentation
C. Application and Transport
D. Transport and Session
Solutions:
| Question 1 Answer: A | Question 2 Answer: B | Question 3 Answer: A | Question 4 Answer: C | Question 5 Answer: A |
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