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When paginating results using DynamoDB SDK, how do you specify the starting point for the next page of results?

easy📝 Syntax Q3 of 15
DynamoDB - with AWS SDK
When paginating results using DynamoDB SDK, how do you specify the starting point for the next page of results?
ASet <code>StartKey</code> to the first item's key
BSet <code>ExclusiveStartKey</code> to the previous response's <code>LastEvaluatedKey</code>
CUse <code>NextPageToken</code> from the previous response
DSet <code>PageNumber</code> to the next page index
Step-by-Step Solution
Solution:
  1. Step 1: Understand pagination tokens

    DynamoDB uses LastEvaluatedKey to indicate where to continue.
  2. Step 2: Use ExclusiveStartKey

    To fetch the next page, set ExclusiveStartKey in the request to the previous LastEvaluatedKey.
  3. Step 3: Eliminate incorrect options

    StartKey, NextPageToken, and PageNumber are not valid DynamoDB SDK parameters.
  4. Final Answer:

    Set ExclusiveStartKey to LastEvaluatedKey -> Option B
  5. Quick Check:

    Verify parameter names in SDK docs [OK]
Quick Trick: Use ExclusiveStartKey with LastEvaluatedKey to paginate [OK]
Common Mistakes:
MISTAKES
  • Using non-existent parameters like NextPageToken
  • Trying to paginate with page numbers

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