When determining the applicability of a specific security control, the security professional should utilize which type of guidance? Response:

Categorization guidance focuses on determining the impact level (e.g., Low, Moderate, High) of an information system, not the applicability of individual controls.

Selection guidance involves choosing an initial set of security controls based on system categorization, which happens before determining the fine-grained applicability of each selected control.

Scoping guidance helps in identifying which security controls are appropriate and applicable to a specific information system based on its mission, environment, and operational context. It helps to remove non-applicable controls and refine the remaining ones.

Remediation guidance is used after controls have been assessed and found deficient, focusing on correcting identified weaknesses, not on initial applicability.