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CompTIA JK0-023 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Network Architecture | 22% | - Network topology and architecture basics - OSI model and network standards |
| Troubleshooting | 24% | - Using tools to diagnose connectivity issues - Network troubleshooting methodology |
| 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% | - Network documentation and monitoring - Change, configuration and lifecycle management |
CompTIA Network+ certification Sample Questions:
Users notice a problem with their network connectivity when additional lights are turned on. Which of the following would be the cause for this problem?
- A. Open short
- B. Cross talk
- C. EMI
- D. DDOS
Correct Answer: C 🗳️
Which of the following is the minimum subnet mask to allow 172.16.1.5 and 172.16.4.3 to be on the same subnet?
- A. /21
- B. /19
- C. /24
- D. /22
Correct Answer: A 🗳️
Various desktop computers are not getting a link light even though the patch cables were replaced. Cables on a 110-block patch panel are suspected to be causing the issues. Which of the following hardware tools would MOST likely be used to troubleshoot and resolve the issue? (Select TWO).
- A. Ping command
- B. Toner probe
- C. Cable certifier
- D. Punch down tool
- E. Crimper
Correct Answer: C,D 🗳️
Which of the following describes an IPv6 address of ::1?
- A. Multicast
- B. Classless
- C. Broadcast
- D. Loopback
Correct Answer: D 🗳️
A mobile user is no longer able to access network resources. Jeff, the network technician, is unable to ping the user's workstation. Which of the following commands would MOST likely be used on that workstation to verify its current network settings?
- A. ipconfig
- B. tracert
- C. net share
- D. hostname
Correct Answer: A 🗳️
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