Important Linux Foundation CGOA Exam Questions

Answer: B

Explanation:

In GitOps, the pull-based reconciliation approach means that agents continuously monitor the Desired State in Git. Unlike push-based systems, which only act when triggered, pull-based systems can reconcile at any time, providing resilience, self-healing, and security (since no external system needs direct access to the cluster).

''In a pull-based model, reconciliation agents continuously fetch and compare the desired state, enabling self-healing and ensuring the desired configuration is accessible at all times.''

Thus, the correct answer is B.

Answer: C

Explanation:

One of the four core GitOps principles is that the system must be Continuously Reconciled. This means reconciliation is not a one-time or on-demand process but happens constantly in the background, ensuring the actual system state remains aligned with the declared desired state.

''GitOps requires that reconciliation is continuous. Software agents continuously compare actual state against desired state and automatically reconcile differences.''

Thus, the correct answer is C.

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Answer: A

Explanation:

The Desired State is the declarative specification stored in Git that defines how the system should look and behave. It is the reference point against which the actual state is continuously reconciled.

''Desired state is the complete declarative specification of a system stored in Git. It defines how the system should be configured and serves as the source of truth for reconciliation.''

Thus, the correct answer is A.

Answer: A

Explanation:

Blue-Green deployments are a progressive delivery pattern where two environments exist: Blue (current version) and Green (new version). The new version is deployed in parallel, and once validated, traffic is switched over from Blue to Green.

''Blue-Green deployments provide zero-downtime releases by running two production environments: one active and one idle. A new version is deployed to the idle environment, tested, and when ready, traffic is switched to it.''

Thus, the correct description is A.

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Answer: B

Explanation:

Terraform (or OpenTofu) uses a declarative model and maintains a state file to track the current status of resources, enabling it to plan and reconcile changes. Ansible, by contrast, is more procedural and executes tasks in a fire-and-forget manner, 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 is B.

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