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CompTIA JK0-023 Exam Syllabus Topics:

CompTIA Network+ certification Sample Questions:

1. STP prevents which of the following problems?

A) Routing loops
B) Switching loops
C) Broadcast storms
D) Collision domains

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

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

3. A technician recently ran a 20-meter section of CAT6 to relocate a control station to a more central area on the production floor. Since the relocation, the helpdesk has received complaints about intermittent operation. During the troubleshooting process, the technician noticed that collisions are only observed on the switch port during production. Given this
information, which of the following is the cause of the problem?

A) Cross talk
B) Speed and duplex mismatch
C) Distance limitation
D) Electromagnetic interference

4. Which of the following is MOST commonly used with a fiber-optic network backbone?

A) 1000BaseCX
B) 100BaseT
C) 100BaseTX
D) 100BaseFX

5. A user reports intermittent network connectivity from their desktop PC. A technician determines the cause to be a bad wall jack and fixes the jack. Which of the following should the technician do NEXT?

A) Verify functionality
B) Document the outcome
C) Question the user
D) Test the theory

Solutions: