CompTIA Network+ Question C-12

A network technician must utilize multimode fiber to uplink a new networking device. Which of the following Ethernet standards could the technician utilize? (Select TWO).

A. 1000Base-LR
B. 1000Base-SR
C. 1000Base-T
D. 10GBase-LR
E. 10GBase-SR
F. 10GBase-T

Correct Answer: BE

Explanation:
1000BASE-SX is a fiber optic Gigabit Ethernet standard for operation over multi-mode fiber with a distance capability between 220 meters and 550 meters. 10Gbase-SR is a 10 Gigabit Ethernet LAN standard for operation over multi-mode fiber optic cable and short wavelength signaling.

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