Huawei Certified ICT Associate – Data Center Network (HCIA-DCN) — Question 59

Which of the following is not a transmission medium for WLAN?

Answer options

• A. Radio wave
• B. Infrared ray
• C. Laser
• D. Ray

Correct answer: D

Explanation

The correct answer is D, as 'Ray' is not a recognized transmission medium for WLAN. Options A, B, and C represent valid transmission methods that are commonly used in wireless communications.