CompTIA A+ Core 1 (220-1101) — Question 123

Which of the following describes the main difference between T568A and T568B cabling standards?

Answer options

• A. The T568B data transfer rate is higher than T568A.
• B. The green and the orange cables are interchanged.
• C. T568A is used in blue cables, and T568B is used in green cables.
• D. The standards use different cable connectors.

Correct answer: B

Explanation

The correct answer is B because the main difference between T568A and T568B is the arrangement of the wire pairs, where the green and orange pairs are swapped. Option A is incorrect as both standards support the same data transfer rates. Options C and D are also incorrect since both standards use the same type of connectors and neither standard is designated specifically for blue or green cables.