AWS Certified Cloud Practitioner — Question 201

A company is developing an application that the company will host on Amazon EC2 instances. The application must be available 24 hours a day, 7 days a week. The company needs a scalable, highly available cloud architecture to support the application.

Which guidelines should the company apply in its design to meet these requirements? (Choose two.)

Answer options

• A. Use EC2 Spot Instances
• B. Use Multi-AZ deployments.
• C. Use Auto Scaling groups
• D. Use AWS Backup.
• E. Use EC2 Reserved Instances.

Correct answer: B, C

Explanation

Selecting Multi-AZ deployments (B) ensures that the application is replicated across multiple availability zones, providing high availability. Auto Scaling groups (C) automatically adjust the number of EC2 instances based on demand, enabling scalability. The other options do not directly address the requirements for high availability and scalability in the same manner.