Certified Network Defender (CND) — Question 65

Which characteristic of an antenna refers to how directional an antennas radiation pattern is?

Answer options

• A. Radiation pattern
• B. Polarization
• C. Directivity
• D. Typical gain

Correct answer: C

Explanation

The correct answer is C, Directivity, as it specifically measures how concentrated the radiation is in a certain direction. A refers to the shape of the radiation field, B relates to the orientation of the wave, and D pertains to the antenna's efficiency in converting input power to radio waves, none of which define directionality.