CompTIA Network+ Question B-8

After a server outage, a technician discovers that a physically damaged fiber cable appears to be the problem. After replacing the cable, the server will still not connect to the network. Upon inspecting the cable at the server end, the technician discovers light can be seen through one of the two fiber strands. Which of the following should the technician do FIRST to reconnect the server to the network?

A. Reverse the fiber strands of the cable and reconnect them to the server
B. Use a TDR to test both strands of a new replacement cable prior to connecting it to the server
C. Replace the server’s single-mode fiber cable with multimode fiber
D. Move the fiber cable to different port on the switch where both strands function

Correct Answer: A

CompTIA A+ Question B-9

A technician is troubleshooting an expansion card in a computer that allows the computer to receive faxes over a VoIP line. The telephone line connected to the expansion card is MOST likely which of the following cable types?

A. Coaxial
B. CAT3
C. CAT6
D. Multi-mode fiber
E. Single-mode fiber

Correct Answer: C

CompTIA A+ Question A-96

Which of the following is a characteristic of single-mode fiber compared to multi-mode?

A. Multi-mode fiber is resistant to EMI while single mode is not.
B. Single-mode fiber uses laser while multi-mode does not.
C. Multi-mode fiber supports lower speeds than single-mode.
D. Single-mode fiber uses light, while multi-mode can use light or RF.

Correct Answer: B