What is the minimum charge for the data transferred between Amazon RDS and Amazon EC2 Instances in the same Availability Zone?
A. USD 0.10 per GB
B. No charge. It is free.
C. USD 0.02 per GB
D. USD 0.01 per GB
What is the minimum charge for the data transferred between Amazon RDS and Amazon EC2 Instances in the same Availability Zone?
Ans is B
B is the correct answer.
https://aws.amazon.com/rds/mysql/pricing/
Data transferred between Amazon RDS and Amazon EC2 Instances in the same Availability Zone is free.
Data transferred between Availability Zones for replication of Multi-AZ deployments is free.
Amazon RDS DB Instances outside VPC: For data transferred between an Amazon EC2 instance and Amazon RDS DB Instance in different Availability Zones of the same Region, there is no Data Transfer charge for traffic in or out of the Amazon RDS DB Instance. You are only charged for the Data Transfer in or out of the Amazon EC2 instance, and standard Amazon EC2 Regional Data Transfer charges apply ($.01 per GB in/out).
Amazon RDS DB Instances inside VPC: For data transferred between an Amazon EC2 instance and Amazon RDS DB Instance in different Availability Zones of the same Region, Amazon EC2 Regional Data Transfer charges apply on both sides of transfer.
DB Snapshot Copy is charged for the data transferred to copy the snapshot data across regions. Once the snapshot is copied, standard database snapshot charges will apply to store it in the destination region.