SAA-C03 Q386 · Storage

Question

A company is planning to run an AI/ML workload on AWS. The company needs to train a model on a dataset that is in Amazon S3 Standard. A model training application requires multiple compute nodes and single-digit millisecond access to the data. Which solution will meet these requirements in the MOST cost-effective way?

Accepted Answer

**S3 Express One Zone** is purpose-built for this exact scenario. Let's check each requirement:

1. **Single-digit millisecond access**: S3 Express One Zone delivers consistent single-digit millisecond latency for data access — up to 10x faster than S3 Standard. S3 Standard typically provides latency in the tens of milliseconds range, so it doesn't meet this requirement natively.

2. **Multiple compute nodes**: S3 Express One Zone is an object storage class, meaning it's accessible from multiple compute instances simultaneously without any shared-storage complexity. Unlike EBS, there's no attachment limitation.

3. **Cost-effective**: S3 Express One Zone has higher per-GB storage costs than S3 Standard, but significantly lower request costs (up to 50% lower). For ML training workloads that

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🏗️ Architecture

⚙️ Operations

💰 Cost

🔒 Security

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