Which two information points should a pre-site survey questionnaire contain? (Choose two.)

A list of clients used is a detailed technical input relevant to device capability analysis but is not a standard logistical item collected in a pre-site survey questionnaire.

Hours during which the survey can be performed are a logistical constraint that must be collected before the site visit so the survey team can schedule access and plan the work appropriately.

Access point density is a design output determined by the survey results, not information that can be meaningfully known or provided before the survey is conducted.

Approximate square footage of the facility is fundamental pre-survey input that helps the engineer estimate survey duration, number of survey passes, and overall project scope before arriving on site.

Total number of APs currently in use describes existing infrastructure and is assessed during the survey or site audit phase, not collected as a pre-survey questionnaire item.