The OSC is responsible for identifying and declaring where CUI is processed, stored, or transmitted. A Certified CMMC Assessor (CCA) may verify boundaries, examine evidence, and confirm monitoring or control practices, but cannot independently determine if a physically separated asset contains CUI. That determination is the responsibility of the OSC, not the assessor.
Exact extracts:
* "The OSC is responsible for identifying CUI assets."
* "Assessors verify and validate the OSC's identification, but do not independently declare or determine the presence of CUI."
* "Assessors are permitted to examine boundary protections, monitoring mechanisms, and internal boundary controls." Why the other options are allowed:
* A: Assessors are required to verify internal system boundaries.
* C: Assessors must confirm that external system boundaries are clearly defined.
* D: Assessors must examine evidence of communication monitoring.
References (CCA documents / Study Guide):
* CMMC Assessment Guide - Level 2, Assessor Roles and Responsibilities.
* CMMC Code of Professional Conduct (OSC retains CUI ownership; assessors validate but cannot declare CUI).

Comprehensive and Detailed Explanation:
The CMMC Assessment Process (CAP) acknowledges that OSCs may require NDAs for proprietary information during scope validation. The Lead Assessor needs access to supporting documents to verify the scope, and signing an NDA is a reasonable step to protect the OSC's interests while fulfilling assessment duties. Options A and B escalate unnecessarily, and Option D is incorrect, as the OSC can impose NDAs per the CAP, especially pre-contract. C aligns with the guidance and standard practice.
Reference:
CMMC Assessment Process (CAP) v1.0, Section 2.2 (Scope Validation), p. 9: "An NDA may be considered to protect proprietary information during scope validation."

To validate that remote access is routed through managed access control points, the assessor requires technical evidence, not just policy. The network diagram shows the design and routing of remote access through controlled points (e.g., VPN gateways), and VPN logs provide operational evidence that remote sessions are enforced through those points.
Exact Extracts:
* AC.L2-3.1.14: "Route remote access through managed access control points."
* Assessment Objective (AC.L2-3.1.14[a]): "Remote access is routed through managed access control points."
* Assessment Method (Examine/Interview/Test): Requires network diagrams and remote access logs as evidence.
* CMMC Assessment Guide specifies: "Network diagrams and supporting logs are required to demonstrate implementation of remote access routing." Why the other options are not correct:
* B (policy/procedures): Policies describe intent, not proof of implementation.
* C (SSP/vendor mgmt): SSPs provide system description but not direct evidence of enforcement.
* D (cloud logs/hardware inventory): These do not specifically demonstrate remote access routing through managed points.
References:
CMMC Assessment Guide - Level 2, Version 2.13: AC.L2-3.1.14 (pp. 25-27).
NIST SP 800-171A, Access Control assessment procedures.

Comprehensive and Detailed In-Depth Explanation:
AU.L2-3.3.7 requires organizations to "synchronize system clocks with an authoritative time source" to ensure consistent timestamps for audit records. The contractor has an NTP server, but the 30-second synchronization threshold on new systems leads to inconsistent timestamps, failing the practice's intent. Per the DoD Assessment Scoring Methodology, AU.L2-3.3.7 is a 1-point practice. If not fully met, it scores -1 (Not Met). The partial implementation (NTP server exists but not effectively applied) doesn't qualify as Met, so no positive points are awarded. The CMMC guide stresses uniformity in timestamps, which this configuration undermines.
Extract from Official CMMC Documentation:
* CMMC Assessment Guide Level 2 (v2.0), AU.L2-3.3.7: "Synchronize clocks to ensure uniformity of timestamps for audit records."
* DoD Scoring Methodology: "1-point practice: Met = +1, Not Met = -1."
Resources:
* https://dodcio.defense.gov/Portals/0/Documents/CMMC/AG_Level2_MasterV2.
0_FINAL_202112016_508.pdf

Comprehensive and Detailed in Depth Explanation:
RA.L2-3.11.3[b] requires remediation aligned with risk assessments, per NIST SP 800-171A. Patch and vulnerability management records (Option A) document vulnerabilities, risk assessments, andremediation actions, making them the key Assessment Object. Option B (tools) and Option C (results) provide raw data, not remediation evidence. Option D (report) is broader and less specific. Option A is the correct answer.
Reference Extract:
* NIST SP 800-171A, RA-3.11.3[b]:"Examine patch and vulnerability management records for remediation per risk assessments."Resources:https://csrc.nist.gov/pubs/sp/800/171/a/final