Automatic data replication
Automatic data replication over three availability-zones in a single region;
Infinitely scalable read-write I/O
Infinitely scalable read-write I/O running on IOPS-optimized solid state drives;
A provisioned-throughput model where read and write units can be adjusted at any time based on actual application usage;
Integrated with other AWS services
Integrated with other AWS services like Elastic MapReduce (EMR), Data Pipeline, and Kinesis;
Pay-per-use model – you never pay for hardware or services you’re not actually using;
Security and access
Security and access control can be applied using Amazon’s IAM service;
Great enterprise-ready features
Great enterprise-ready features such as a robust SLA, monitoring tools, and private VPN functionality.
Amazon DynamoDB is a managed NoSQL service with strong consistency and predictable performance that shields users from the complexities of manual setup. It is a fully managed database for applications across the entire Internet, which operates in several regions with several leading servers and has built-in security, backup and recovery, and in-memory caching. DynamoDB processes more than 10 trillion requests per day and copes with peak loads in excess of 20 million requests per second.