AWS Certified Cloud Practitioner (CLF-C02)Cloud ConceptsEasy

A company is designing a new cloud-native application on AWS. They want to ensure that the application can automatically recover from infrastructure or service failures. Which AWS Well-Architected Framework pillar primarily focuses on this aspect?

  1. AOperational Excellence
  2. BReliability
  3. CSecurity
  4. DCost Optimization
Show answer & explanation

Correct answer: B. Reliability

The Reliability pillar of the AWS Well-Architected Framework focuses on the ability of a system to recover from infrastructure or service disruptions, dynamically acquire computing resources, and mitigate disruptions.

Why the other options are wrong

  • A. Operational Excellence focuses on running and monitoring systems, and continually improving processes.
  • C. Security focuses on protecting information and systems.
  • D. Cost Optimization focuses on avoiding unnecessary costs and maximizing business value.

Reliability Pillar

The ability of a system to recover from infrastructure or service disruptions, dynamically acquire computing resources to meet demand, and mitigate disruptions such as misconfigurations or transient network issues.

  • Focuses on fault tolerance and disaster recovery.
  • Ensures systems can recover from failures.
  • Includes backup and restore, multi-AZ deployment, and auto scaling.

Memory trick: Six pillars hold the cloud's wisdom.

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