An ArcGIS user has a custom .dll that reads the domains available in a geodatabase and compares them to business rules. What must the user do to have this tool run automatically each night?

Using the Spatial Analyst IDW (Inverse Distance Weighted) tool an ArcGlS user interpolates a point feature class to a raster. The user notices that some high point values near the edge of the feature class seem to have a dramatic effect on the output.
This occurs even in areas that are far from the high edge values
Which two parameters should the user consider changing in the IDW tool? (Choose two)

An ArcGIS user needs to create a map of flood zones for an insurance company. The user has a choice of four elevation data sets to perform the analysis

In a disconnected environment a data receiver fails to send acknowledgement messages often enough. How will the data sender respond?

An ArcGIS user wants to create a tool that reads a Web data source from the U.S. Geological Survey site and create a feature class of earthquakes over magnitude 1 that have occurred in the last seven days. The data source URL is a .txt file directly usable as x, v event data, once downloaded.
The goal is to have a repeatable process to be run on demand overwriting the output each time with minimal user input and easy to understand for other users to whom the tool is provided What should the user do to read and process the data?