Certified Ethical Hacker (CEH) — Question 77

Which type of antenna is used in wireless communication?

Answer options

• A. Omnidirectional
• B. Parabolic
• C. Uni-directional
• D. Bi-directional

Correct answer: A

Explanation

The correct answer is A. Omnidirectional antennas are designed to radiate signals in all directions, making them ideal for wireless communication. The other options, such as Parabolic and Uni-directional antennas, focus signals in specific directions, which is not suitable for the broad coverage required in wireless communication.