The number of elements in a list attribute will always be the same for every feature.

The number of elements in a list attribute will always be the same for every feature.

• A. True
• B. Sometimes
• C. Not specified
• D. False

Answer: (D)

In FME, a list attribute is just a collection of values attached to a feature, and its size is not fixed. Because features often come from different sources or are produced by different processing steps, the number of elements in a list can vary from feature to feature. For example, one feature might have a list of phone numbers with two items, another might have one, and yet another could have none. Or a list representing vertices along a feature’s geometry will typically differ in length depending on how many vertices the feature has. Tokenizing or splitting data can similarly yield lists with different counts across features. To force a uniform length, you would need to impose a rule or padding step explicitly, but by default there is no guarantee that every feature’s list has the same number of elements.

In FME, a list attribute is just a collection of values attached to a feature, and its size is not fixed. Because features often come from different sources or are produced by different processing steps, the number of elements in a list can vary from feature to feature. For example, one feature might have a list of phone numbers with two items, another might have one, and yet another could have none. Or a list representing vertices along a feature’s geometry will typically differ in length depending on how many vertices the feature has. Tokenizing or splitting data can similarly yield lists with different counts across features.

To force a uniform length, you would need to impose a rule or padding step explicitly, but by default there is no guarantee that every feature’s list has the same number of elements.