DVA-C02 Question 110
Single answerAn application running on Amazon EC2 handles real-time video processing. The processed video files need to be stored for long-term access and retrieval. Which storage pattern and service combination is the most appropriate for this use case?
- A
Ephemeral storage using the instance store on the EC2 instance
- B
Ephemeral storage using Amazon S3 Transfer Acceleration
- C
Persistent storage using Amazon S3 Standard
- D
Persistent storage using Amazon EBS with Provisioned IOPS
Show answer and explanation
Correct answer: C
Explanation
In this scenario, the processed video files need to be stored for long-term access and retrieval. Persistent storage is required for durability, and Amazon S3 Standard is the best choice for scalable, durable, and cost-effective long-term storage. Ephemeral storage solutions, such as instance store, are not suitable for retaining data beyond the lifecycle of an EC2 instance.
- A. Incorrect.
Instance store is ephemeral storage, meaning data is lost if the instance is stopped or terminated. This is unsuitable for long-term storage of processed video files.
- B. Incorrect.
Amazon S3 Transfer Acceleration is a feature to speed up uploads to S3, but it does not provide storage itself. It is not directly applicable to the described use case.
- C. Correct.
Amazon S3 Standard is a persistent storage solution designed for durability and scalability, making it suitable for long-term storage of processed video files.
- D. Incorrect.
Amazon EBS is persistent storage attached to EC2 instances, but it is typically used for block storage in scenarios requiring low-latency access by the instance, not for scalable long-term storage like S3.