Question: Does DynamoDB support read replicas?

Answer

Yes, DynamoDB supports read replicas. Read replicas allow you to scale the read capacity for your DynamoDB table by creating one or more replicas of the table in one or more other regions. These replicas can be used to offload read traffic from the primary table, which can help to improve performance and reduce costs.

When you create a read replica, DynamoDB automatically provisions and maintains a copy of the table in the other region. The replica is updated with every write operation made to the primary table and is used to serve read requests.

You can create up to 15 read replicas for a table. Each replica is a fully independent copy of the table, with its own set of provisioned throughput capacity. You can also use different read replicas to serve different read traffic types, such as on-demand or provisioned read capacity.