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Which of the following data-reading action, does many GetItem calls on various items using primary keys, with the option of using one or more tables?

21. Which of the following data-reading action, does many GetItem calls on various items using primary keys, with the option of using one or more tables?

1. GetItem
2. BatchGetItem
3. Scan
4. Query

Answer: B) BatchGetItem

Explanation:

BatchGetItem does many GetItem calls on various items using primary keys, with the option of using one or more tables.