Which of the following command is used to get all the indexes on a collection?

Question

Options

• Adb.collection.showIndexes()
• Bdb.collection.findlndexes()
• Cdb.showIndexes()
• Ddb.collection.getlndexesQ

• A
  2% (1)
• C
  4% (2)
• D
  94% (48)

Explanation

db.collection.getIndexes() is the correct MongoDB method for retrieving all indexes defined on a collection, returning an array of index documents with their keys and options.

Why the distractors are wrong:

• A (showIndexes()) - this method does not exist in MongoDB's collection API.
• B (findIndexes()) - also non-existent; "find" is reserved for document queries, not index introspection.
• C (db.showIndexes()) - incorrect scope; you must call the method on a specific collection object, not directly on the database object.

Memory tip: Think "get what you need from the collection" - the pattern is always db.<collectionName>.getIndexes(). The word get signals retrieval of metadata, and since indexes belong to a collection (not the database), the method lives on the collection object, not db itself.

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