When writing, FME only converts 'null' values when the format does not support the current representation.

• A. True
• B. False
• C. Sometimes
• D. Never

Answer: (A)

When FME writes data, it maps missing values to representations supported by the target format. If the writer can represent the current internal value as-is, it will preserve it. If the target format cannot represent that value, FME converts it to the format’s recognized missing-value representation, which is typically a Null in the output.

So the behavior described—that nulls are converted only when the format doesn’t support the current representation—matches how FME handles writing and is why this statement is correct. For example, a format that cannot store a true Null may use an empty string or another placeholder for missing data, and FME will perform that conversion only when needed.