CCNA: Cisco Certified Network Associate — Question 1242

Which property is shared by 10GBase-SR and 10GBase-LR interfaces?

Answer options

• A. Both use the single-mode fiber type.
• B. Both require UTP cable media for transmission.
• C. Both require fiber cable media for transmission.
• D. Both use the multimode fiber type.

Correct answer: C

Explanation

The correct answer is C because both 10GBase-SR and 10GBase-LR interfaces utilize fiber optic cables for their data transmission. Option A is incorrect as 10GBase-SR uses multimode fiber while 10GBase-LR uses single-mode fiber. Option B is wrong because these interfaces do not use UTP cable media, and option D is incorrect since only 10GBase-SR is designed for multimode fiber.