CSI Change Management & Deployment Flashcards

Which deployment pattern gradually shifts traffic from an old version to a new version in incremental percentages?

Answer: Rolling deployment

A rolling deployment incrementally replaces old instances with new ones, limiting blast radius while gradually migrating all traffic.

A post-implementation review (PIR) after a major integration deployment should focus on:

Answer: Evaluating what went well, what failed, and lessons learned to improve future deployments

A PIR captures lessons learned from the deployment to continuously improve processes for future integration projects.

Continuous Delivery (CD) in a system integration context means:

Answer: Keeping software in a deployable state so releases can happen on demand with minimal manual steps

Continuous Delivery ensures the codebase is always in a releasable state, with automated pipelines that require only a manual approval gate for production.

What is 'infrastructure as code' (IaC) and why is it valuable in CSI deployments?

Answer: Managing and provisioning infrastructure through machine-readable configuration files, enabling repeatable and auditable deployments

IaC enables version-controlled, repeatable infrastructure provisioning, reducing human error and ensuring consistent environments across dev, test, and production.

A 'feature flag' (feature toggle) allows a system integrator to:

Answer: Enable or disable functionality at runtime without deploying new code

Feature flags decouple deployment from release, allowing new integration features to be deployed but kept hidden until they are ready to activate.

Which document formally authorizes a system integrator to make a specific change to a production system?

Answer: Change Request (CR) / Change Order (CO)

A Change Request or Change Order is the formal record that describes, justifies, and authorizes a specific modification to a production system.