SAA-C03 Q670 · Serverless

Question

AWS Lambda functions need shared access to internal libraries and reference data that are updated independently by different teams. Which solution will meet these requirements?

Accepted Answer

**Amazon EFS mounted to Lambda** satisfies every requirement:

1. **Shared access**: EFS is a fully managed, network-attached file system that multiple Lambda functions (and other compute services) can mount simultaneously. All functions see the same files in real time.

2. **Independent updates by different teams**: Any team can write updated libraries or reference data to EFS independently. Because EFS provides strong read-after-write consistency, other Lambda functions immediately see the latest version without redeployment.

3. **Native Lambda integration**: AWS Lambda natively supports mounting EFS file systems via an **EFS Access Point**. You configure this in the Lambda function's settings by specifying the EFS file system ARN and a local mount path (e.g., `/mnt/data`). Lambda funct

📖 Explanation

✅ Correct Answer

❌ Wrong Answers

📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

🔒 Security

🎯 Exam Tips