CompTIA Network+ (N10-007) — Question 144

A network technician needs to install a new access switch. After installing the new switch, the technician begins to move connections from the old switch to the new switch. The old switch used a GBIC with SC connectors, and the new switch uses an SFP with LC connectors. After connecting the SC connector to the SC- to-LC adapter and plugging it into the switch, the link does not come up as expected. Which of the following should a network technician perform NEXT?

Answer options

• A. Replace SFP with a new one.
• B. Fall back to the old switch.
• C. Transpose the fiber pairs.
• D. Replace multimode with single-mode cable.

Correct answer: C

Explanation

The correct answer is C because transposing the fiber pairs can resolve issues related to the connection not establishing correctly, often caused by incorrect pairing in fiber optic connections. The other options either do not address the specific issue at hand or involve unnecessary actions that do not contribute to fixing the link problem.