CLF-C02 Question 293
Single answerA company is hosting an application on Amazon EC2 instances in the us-east-1 and us-west-1 Regions. They want to transfer 1 TB of data monthly from the us-east-1 Region to the us-west-1 Region. How will AWS charge for this data transfer?
- A
Incoming data transfer to us-west-1 is free, but outgoing data transfer from us-east-1 incurs a cost.
- B
Incoming data transfer to us-west-1 and outgoing data transfer from us-east-1 both incur a cost.
- C
Both incoming and outgoing data transfers are free since both Regions belong to the same AWS account.
- D
Outgoing data transfer from us-east-1 is free, but incoming data transfer to us-west-1 incurs a cost.
Show answer and explanation
Correct answer: A
Explanation
When transferring data between AWS Regions, AWS only charges for the outgoing data transfer from the source Region. Incoming data transfer to the destination Region is free. In this scenario, the company will incur costs for the outgoing data transfer from us-east-1 to us-west-1, while the incoming data transfer to us-west-1 will be free.
- A. Correct.
Correct. AWS charges for outgoing data transfer from one Region to another, but incoming data transfer to a Region is free.
- B. Incorrect.
Incorrect. While outgoing data transfer incurs a cost, incoming data transfer to a Region is free.
- C. Incorrect.
Incorrect. Data transfer costs between AWS Regions apply regardless of whether the Regions belong to the same AWS account.
- D. Incorrect.
Incorrect. AWS does not charge for incoming data transfer to a Region; the outgoing transfer from the source Region incurs the cost.