The things taken care by DynamoDB are as follows:-
It takes away one of the main stumbling blocks of scaling databases:
The database software and the provisioning of the hardware is managed by DynamoDB.
User can deploy a non-relational database in just few minutes.
DynamoDB can scale automatically to meet workload demands of your data as your table size grows.
DynamoDB replicates data across three facilities in an AWS Region, which gives the user high availability and data durability.