Is decreasing the storage size of a DB Instance permitted?
A.
Depends on the RDMS used
B.
Yes
C.
No
Explanation:
“note that you cannot reduce storage size once it has been allocated” Source: http://docs.aws.amazon.com/
AmazonRDS/latest/UserGuideCHAP_Storage.html#CHAP_Storage.FactsAbout
Ans: C
https://dba.stackexchange.com/questions/24491/how-do-i-reduce-the-database-size-on-aws-rds-mysql
The question didn’t mentioned whether the DB is RDS/ Dynamo.
Dynamo Db supports push button scaling