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What happens to an item in DynamoDB when its TTL timestamp expires?

easy📝 Conceptual Q1 of 15
AWS - DynamoDB
What happens to an item in DynamoDB when its TTL timestamp expires?
AThe item is automatically deleted by DynamoDB
BThe item is archived for future use
CThe item is encrypted and hidden
DThe item is moved to a different table
Step-by-Step Solution
Solution:

  1. Step 1: Understand TTL expiration behavior

    When the TTL timestamp on an item passes, DynamoDB marks it for deletion.

  2. Step 2: Recognize automatic deletion process

    DynamoDB automatically deletes expired items without user intervention.

  3. Final Answer:

    The item is automatically deleted by DynamoDB -> Option A

  4. Quick Check:

    TTL expiration = automatic deletion [OK]
Quick Trick: TTL expired items are deleted automatically [OK]
Common Mistakes:
MISTAKES
  • Thinking TTL archives items
  • Believing TTL encrypts items
  • Assuming TTL moves items to other tables

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