AWS Certified Solutions Architect - Associate

Explanation

Let's analyze each requirement:

1. 10 TB storage with maximum possible I/O performance for video processing:

   • Amazon EC2 instance store provides the highest I/O performance because it's physically attached to the host server (ephemeral storage).
   • Amazon EBS (Elastic Block Store) is also high-performance but typically has slightly lower performance than instance store.
   • For maximum I/O performance, instance store is the best choice.

2. 300 TB of very durable storage for storing media content:

   • Amazon S3 provides 99.999999999% (11 nines) durability, making it ideal for durable storage.
   • Amazon EFS (Elastic File System) is durable but doesn't match S3's durability guarantees.
   • S3 is designed for highly durable object storage.

3. 900 TB of storage for archival media:

   • Amazon S3 Glacier is specifically designed for long-term archival storage with lower costs.
   • Amazon S3 Standard would be more expensive for archival data.

Why Option D is correct:

• Instance store for maximum I/O performance (video processing)
• Amazon S3 for highly durable storage (media content)
• Amazon S3 Glacier for cost-effective archival storage

Why other options are incorrect:

• Option A: Uses EBS instead of instance store for maximum performance
• Option B: Uses EBS instead of instance store for maximum performance, and EFS instead of S3 for durable storage
• Option C: Uses EFS instead of S3 for durable storage, and S3 Standard instead of S3 Glacier for archival (more expensive)

This solution provides the optimal balance of performance, durability, and cost-effectiveness for each specific use case.