SAP-C02 Q86 · CI/CD

Question

A company plans to refactor a monolithic application into a modern application design deployed on AWS. The CI/CD pipeline needs to be upgraded to support the modern design for the application with the following requirements: • It should allow changes to be released several times every hour. • It should be able to roll back the changes as quickly as possible. Which design will meet these requirements?

Accepted Answer

**Option B — Elastic Beanstalk URL Swap (Blue/Green Deployment)** meets both requirements perfectly:

**Requirement 1: Release changes several times every hour**
- Elastic Beanstalk manages the full environment lifecycle (provisioning, load balancing, scaling, health monitoring). The CI/CD pipeline deploys the new version to a **staging environment** while production remains untouched.
- Deployments to the staging environment are independent and can happen in parallel with production traffic, enabling very fast release cycles.
- The actual cutover is a **CNAME swap** — a DNS-level redirect that takes effect in seconds, not minutes.

**Requirement 2: Roll back as quickly as possible**
- Since the old production environment is still running and intact after the swap, **rollback is simply ano

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