You have a DynamoDB table with TTL enabled on attribute 'expireAt'. You want to migrate data to a new table but keep expired items for 7 days before deletion. How can you implement this?

hard📝 Application Q9 of 15

AWS - DynamoDB

ASet TTL attribute to null and use a scheduled Lambda to delete after 7 days

BAdd 7 days to 'expireAt' timestamps during migration and enable TTL on new table

CDisable TTL on new table and manually delete expired items after 7 days

DUse DynamoDB Streams to delay deletion by 7 days

Step-by-Step Solution

Solution:

Step 1: Understand TTL controls deletion timing
TTL deletes items when current time passes the TTL timestamp.
Step 2: Adjust TTL timestamps to delay deletion
Adding 7 days to 'expireAt' delays deletion by 7 days.
Step 3: Enable TTL on new table with updated timestamps
This ensures automatic deletion after the desired delay.
Final Answer:
Add 7 days to 'expireAt' timestamps during migration and enable TTL on new table -> Option B
Quick Check:
Delay deletion by adjusting TTL timestamps [OK]

Quick Trick: Shift TTL timestamps forward to delay expiration [OK]

Common Mistakes:

Disabling TTL and relying on manual deletion
Setting TTL attribute to null disables expiry
Expecting Streams to delay deletion

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More AWS Quizzes

You have a DynamoDB table with TTL enabled on attribute 'expireAt'. You want to migrate data to a new table but keep expired items for 7 days before deletion. How can you implement this?

Step 1: Understand TTL controls deletion timing

Step 2: Adjust TTL timestamps to delay deletion

Step 3: Enable TTL on new table with updated timestamps

Final Answer:

Quick Check:

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