Implementing Cisco Wireless Network Fundamentals (WIFUND, legacy) — Question 125

An engineer removed an antenna that was providing 3dB of gain and replaced it with one that provides 16 dB of gain. How has the power level changed?

Answer options

• A. 20 times stronger
• B. 16 times stronger
• C. 20 times weaker
• D. 16 times weaker

Correct answer: A

Explanation

The gain difference between the two antennas is 13dB (16dB - 3dB). A 10dB increase in gain corresponds to a tenfold increase in power, so a 13dB increase results in approximately 20 times stronger power. The other options do not accurately reflect the calculation of power change based on the gain difference.