Cyber AB CMMC-CCA Exam With Confidence Using Practice Dumps

Applicable Requirement: CM.L2-3.4.3 — “Track, review, approve/disapprove, and audit changes to organizational systems.”

Why CCB Minutes Are Correct (supports B):

Change Control Board (CCB) documentation includes impact analyses, approvals, disapprovals, and justification for system changes.

The CMMC Assessment Guide explicitly identifies CCB minutes and supporting records as primary evidence of compliance with change management practices.

Why Other Options Are Insufficient:

A (Vendor description): Provides information on the update, but does not show organizational review or approval.

C (Audit logs): Show when a change occurred, but not whether it was analyzed and approved beforehand.

D (Incident logs): Reflects results after implementation, but not the review/approval process.

Assessment Guidance Extract (NIST SP 800-171A, CM.L2-3.4.3):

Objectives include verifying that system changes are:

Documented,

Reviewed,

Approved/disapproved, and

Audited.

Evidence such as CCB minutes and approval records directly satisfies these objectives.

References (CCA Official Sources):

NIST SP 800-171 Rev. 2 — CM.L2-3.4.3 (Change Management)

NIST SP 800-171A — Assessment Objectives for CM.L2-3.4.3

CMMC Assessment Guide – Level 2, Version 2.13 — Change Management evidence expectations

Applicable Requirement: SC.L2-3.13.16 — “Protect the confidentiality of CUI at rest.”

Why D is Correct: Cryptographic mechanisms (e.g., full-disk encryption, database encryption, file encryption) provide the strongest protection for information at rest by preventing unauthorized disclosure if systems or media are accessed.

Why Other Options Are Insufficient:

A (Patching): Protects against vulnerabilities, but not specific to data-at-rest confidentiality.

B (File share): Provides a storage method, not protection.

C (Secure offline storage): Helps physically, but not sufficient for digital confidentiality without encryption.

References (CCA Official Sources):

NIST SP 800-171 Rev. 2 — SC.L2-3.13.16

NIST SP 800-171A — SC.L2-3.13.16 Assessment Objectives

CMMC Assessment Guide – Level 2, Data at Rest Protection

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CMMC Level 2 requires CSPs that process, store, or transmit CUI to meet FedRAMP Moderate (or equivalent) authorization, not FedRAMP High. FedRAMP High is not a CMMC requirement but may be required by contract or specific agencies.

Exact Extracts:

DoD CMMC Scoping Guide: “External Cloud Service Providers must meet FedRAMP Moderate equivalency when storing, processing, or transmitting CUI.”

CMMC Assessment Guide: “The baseline requirement for CUI in cloud environments is FedRAMP Moderate; higher levels may be contractually required.”

Why other options are not correct:

A: Equivalency is allowed, but only to FedRAMP Moderate level.

C/D: Incorrect, because CMMC Level 2 does not mandate FedRAMP High.