Final answer:
It is true that whenever data is inserted into an indexed collection, the index must also be updated to include the new data, ensuring efficient searches and accurate query results.
Step-by-step explanation:
The statement that an index needs to be updated whenever data is inserted into the indexed collection is true. An index in a database system is similar to the index in a book; it allows the database to find data more quickly and efficiently. Whenever a new record is inserted into a table or a collection that is indexed, the index must also be updated to include information about the new record. This is necessary so that the index can provide accurate results for queries that involve the newly inserted data. Not updating the index with new data can lead to inconsistencies and incorrect query results.