Question

A DevOps team pushes a new application version through their CI/CD pipeline to production. Minutes after deployment completes, monitoring shows a spike in HTTP 500 errors caused by a defect that passed automated tests. The team needs the fastest, most reliable way to restore service while they investigate. Which capability should the pipeline provide to meet this need?

Accepted Answer

An automated rollback mechanism that redeploys the last known-good immutable artifact from the registry

Answer

A manual hotfix branch that developers patch and rebuild directly on the production servers

Answer

Increased logging verbosity on the production nodes to capture more diagnostic detail

Answer

A scheduled nightly rebuild of the environment to overwrite the faulty release