When executing a remediation review, the Lead Assessor should:

A remediation review is effectively a "delta assessment" that focuses only on the practices that were previously not met and listed on the Plan of Action & Milestones (POA&M). After the Lead Assessor completes this review and gathers the necessary evidence to validate the remediation, the findings must be compiled into a package. This package is then submitted to the assessor's CMMC Third-Party Assessment Organization (C3PAO) for a mandatory internal quality review. This quality assurance step ensures the package is complete, accurate, and conforms to CMMC assessment standards before being submitted to the Cyber AB for final approval.

A. help OSC to complete planned remediation activities.

This is incorrect. Assisting an Organization Seeking Certification (OSC) with remediation constitutes consulting, which is a direct conflict of interest and violates the CMMC Code of Professional Conduct's principle of objectivity.

B. plan two consecutive remediation reviews for an OSC.

This is incorrect. The CMMC Assessment Process (CAP) outlines a single remediation period (typically 90 days) and a corresponding review. There is no provision or requirement for planning two consecutive reviews.

D. validate that practices previously listed on the POA&M have been removed on an updated Risk Assessment.

This is incorrect. The assessor's primary role is to validate the implementation and effectiveness of the remediated practice itself, not just to verify a documentation update. The POA&M, not the Risk Assessment, is the document from which items are closed out.

---

1. Cybersecurity Maturity Model Certification (CMMC) Assessment Process (CAP) for CMMC Level 2

Version 2.1 (December 2023).

Section 5.7

"Conduct C3PAO Quality Review

" Page 23: This section explicitly states

"The C3PAO performs a quality review of the assessment package to ensure it is complete and accurate." This step is mandatory for all assessment activities

including the results of a remediation review

before submission to the Cyber AB. The remediation review results form part of the final assessment package.

2. Cyber AB Code of Professional Conduct

Version 2.1 (October 2023).

Section 3.2

"Objectivity

" Page 4: "Certified Professionals and C3PAOs must be objective and free from conflicts of interest in performing their CMMC-related responsibilities and activities... C3PAOs and their Certified Professionals are prohibited from providing consulting services to any OSC." This directly refutes option A.

3. Cybersecurity Maturity Model Certification (CMMC) Assessment Process (CAP) for CMMC Level 2

Version 2.1 (December 2023).

Section 5.6

"Conduct Remediation Contractual Action

" Page 22: This section details the remediation process

which occurs within a defined window (e.g.

90 days) and involves a single delta assessment to verify POA&M closure. It does not mention planning multiple consecutive reviews

making option B incorrect. The focus is on assessing the "remediated CMMC practices

" which refutes the document-only validation described in option D.