What is the first question you should ask before performing a WLAN site survey?

• A. What kind of facility is it?
• B. How many access points will be installed?
• C. What is the project budget?
• D. What is the building's address?

Answer: (A)

Understanding what kind of facility you’re surveying is the starting point because the building’s characteristics directly shape radio behavior and design goals. Different facilities have different materials, layouts, occupancy patterns, and potential interference sources, which affect how signals propagate, where coverage hotspots will appear, and what capacity is needed. For example, a hospital with many metal fixtures and EMI considerations requires a very different survey focus and AP placement strategy than a simple open-office space. Once you know the facility type, you can tailor the survey approach, set realistic performance targets, and determine appropriate measurement methods. The other details—how many APs, budget, or exact address—depend on the facility and the intended use, so they come after establishing the environment and requirements.