AWS Certified Data Engineer – AssociateData Storage and ManagementEasy
A data engineering team is designing a new data lake on AWS. They need to store petabytes of raw, unstructured data, such as images and videos, with high durability and virtually unlimited scalability. The data will be accessed infrequently for analytics, but when accessed, low latency is critical. Which AWS storage service is most appropriate for this requirement?
- AAmazon S3 Standard
- BAmazon EFS Standard
- CAmazon RDS for PostgreSQL
- DAmazon EBS gp3 volumes
Show answer & explanationAnswer & explanation
Correct answer: A. Amazon S3 Standard
Amazon S3 Standard offers high durability, virtually unlimited scalability, and low-latency access suitable for petabyte-scale unstructured data, making it ideal for a data lake's raw data storage layer.
Why the other options are wrong
- B. Amazon EFS is a shared file system, suitable for file-level access but less cost-effective and scalable than S3 for petabytes of unstructured data.
- C. Amazon RDS is a relational database service, not designed for petabytes of unstructured data.
- D. Amazon EBS gp3 volumes are block storage for EC2 instances, not a scalable object storage solution for a data lake.
Amazon S3 Standard
Amazon Simple Storage Service (S3) Standard is an object storage service offering high durability, availability, and performance for frequently accessed data.
- Object storage for unstructured data
- Virtually unlimited scalability
- Designed for 99.999999999% (11 nines) durability
- Low-latency access
Memory trick: S3 stores everything, simply and securely.