What is the MOST likely reason that the items are not being deleted?

A database specialist needs to delete user data and sensor data 1 year after it was loaded in an Amazon DynamoDB table. TTL is enabled on one of the attributes. The database specialist monitors TTL rates on the Amazon CloudWatch metrics for the table and observes that items are not being deleted as expected.

What is the MOST likely reason that the items are not being deleted?
A . The TTL attribute’s value is set as a Number data type.
B. The TTL attribute’s value is set as a Binary data type.
C. The TTL attribute’s value is a timestamp in the Unix epoch time format in seconds.
D. The TTL attribute’s value is set with an expiration of 1 year.

View Answer

Answer: B

Explanation:

https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/TTL.html#time-to-live-ttl-before-you-start-formatting