What are the 4 pillars of AWS?

The 4 pillars of AWS, as described in the AWS Well-Architected Framework, are the key foundations used to design secure, high-performing, resilient, and efficient cloud architectures. These pillars guide developers and architects in building reliable cloud solutions.

1. Operational Excellence

This pillar focuses on running and monitoring systems effectively. It includes automation, continuous improvement, logging, monitoring, and responding to incidents efficiently. The goal is to achieve smooth operations and minimal downtime.

2. Security

This pillar ensures your applications and data are protected. It covers identity management, encryption, data protection, threat detection, and securing every layer of your infrastructure. The emphasis is on building secure-by-design systems.

3. Reliability

Reliability ensures that your workloads perform correctly and recover quickly from failures. It includes fault tolerance, backups, multi-AZ deployments, automated recovery, and ensuring your system can adapt to changing demands.

4. Performance Efficiency

This pillar focuses on using computing resources efficiently. It involves selecting the right instance types, storage options, and database engines, as well as using caching, serverless technologies, and scalable architectures to optimize performance.