Identifying End-to-End Network Performance

B.

When using Ekahau Site Survey to validate the performance of an existing wireless network, the type of survey that should be used to identify the end-to-end network performance is an active ping survey.

An active ping survey involves sending ping packets from the wireless client device to a destination, which can be a wired or wireless endpoint. This survey type allows the wireless engineer to measure the round-trip time (RTT) of the ping packets, as well as the packet loss and throughput. By measuring these parameters, the engineer can determine if the network is operating as expected and if any performance issues are present.

The other survey types listed in the question are:

A. GPS assisted: This survey type is used to collect GPS data to create accurate maps of the wireless coverage area. It does not measure end-to-end network performance.

B. Spectrum analysis: This survey type is used to identify sources of interference in the wireless frequency spectrum. It does not measure end-to-end network performance.

C. Passive: This survey type involves passively listening to the wireless traffic to analyze signal strength, interference, and data rates. It does not measure end-to-end network performance.

Therefore, the correct answer is D. active ping.