Implementing Cisco Wireless Network Fundamentals (WIFUND, legacy) — Question 40

When calculating the link budget for a wireless point-to-point bridge, the engineer notices that one antenna has its gain marked as 2.85 dBd. With a 20-mW access point and 3-dBi loss for the cable, what is the approximate EIRP?

Answer options

• A. 15 dBm
• B. 18 dBm
• C. 22 dBm
• D. 25 dBm

Correct answer: A

Explanation

The EIRP can be calculated by converting the access point power to dBm, adding the antenna gain (converted from dBd to dBi), and then subtracting the cable loss. In this case, the calculation yields approximately 15 dBm, making option A correct. The other options do not represent the correct EIRP based on these parameters.