Terraform (or OpenTofu)uses a declarative model and maintains astate fileto track the current status of resources, enabling it to plan and reconcile changes.Ansible, by contrast, is more procedural and executes tasks in afire-and-forgetmanner, without tracking persistent resource state.
"Terraform maintains state for each managed resource, enabling planned, consistent changes. Ansible executes tasks without tracking resource state, working in a fire-and-forget model." Thus, the correct answer isB.
References:GitOps Tooling (CNCF GitOps Working Group).

TheState Storeis typically implemented using aversion control system (VCS)such as Git. This ensures that the system's state is auditable, versioned, and immutable. Other systems like databases or distributed file systems do not meet the immutability and versioning requirements of GitOps.
"In GitOps, the desired state must be stored in a version control system. This serves as the State Store, providing a complete, immutable, and auditable history of changes." Thus, the correct answer isD: version control system.
References:GitOps Terminology (CNCF GitOps Working Group).

In GitOps, deployments are driven bycommitting declarative configurationinto a Git repository (the State Store). From there, agents reconcile the actual environment to match the desired state, making deployments reproducible and auditable.
"To deploy in GitOps, commit the declarative configuration into version control. The reconciler ensures the runtime environment converges to the declared state." Thus, the correct answer isD.
References:GitOps Principles (CNCF GitOps Working Group),Principle 1: Declarative configuration stored in Git.

GitOps is not a replacement for DevOps.Instead, it is an evolution and practical implementation of DevOps principles, using Git as the single source of truth and continuous reconciliation as the operational model.
"GitOps builds on the foundation of DevOps by providing a framework to put its principles into practice. It leverages Git and declarative reconciliation to realize DevOps goals." Thus, the best description of the relationship isB.
References:GitOps Related Practices (CNCF GitOps Working Group).

In GitOps, rollback is the process of reverting to a previous known-good configuration stored in Git. This is typically done when a deployment introduces abug, error, or failurethat impacts system stability.
"Rollback in GitOps is used to revert to a previous commit representing a stable configuration when the current deployment causes errors or failures." Thus, the correct answer isA.
References:GitOps Principles (CNCF GitOps Working Group), Rollback and Recovery.