CompTIA A+ Core 1 (220-1101) — Question 352

An administrator wants to replace a fiber-optic cable. Which of the following should the administrator most likely use?

Answer options

• A. LC
• B. Bayonet Neill Concelman
• C. RJ45
• D. DB9

Correct answer: A

Explanation

The LC connector is specifically designed for fiber-optic cables, making it the most suitable choice for replacement. The Bayonet Neill Concelman (BNC) and RJ45 connectors are used for coaxial and Ethernet cables respectively, while DB9 connectors are typically associated with serial connections, thus they are not appropriate for fiber-optic applications.