Which statement is true about using the Schema (From Table) reader vs Microsoft Excel for the external schema source?

• A. The Schema (From Table) reader allows you to choose which columns define attribute names, data types, etc.
• B. If you chose a Microsoft Excel table as the external schema source, the writer feature type would automatically write to Excel, even if another format was defined on the writer.
• C. Resource readers cannot use the Microsoft Excel format.
• D. You cannot create schema features from the Microsoft Excel format.

Answer: (A)

The key idea is how you define and control the resulting attribute schema when you bring in data from a table-like source. The Schema (From Table) reader is designed to let you pick exactly which columns will be used as attribute names and which columns determine data types, giving you direct control over the resulting schema.

That control makes the statement true: you can choose which columns define attribute names and data types. The other statements don’t hold up because:

• Using Excel as the external schema source does not force the writer to output to Excel, regardless of the writer’s configured format.

• Resource readers can indeed work with Excel formats, so claiming Excel isn’t usable by resource readers is inaccurate.

• You can create schema features from Microsoft Excel format when using the appropriate reader, so saying you cannot is not correct.

So the Schema (From Table) reader’s ability to designate attribute-naming and data-type columns is the defining correct point.