LLMResponse MA.L2-3.7.5.b

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For assessment objective [b], which focuses on ensuring nonlocal maintenance sessions are terminated when maintenance is complete, I'll provide rankings and prioritization based on the CMMC requirements.

Ranking of Evidence Types

For the termination of nonlocal maintenance sessions, I recommend ranking evidence types as follows:

1. **Screen Share (I4)** - Highest value evidence as it allows direct observation of the session termination process, showing both manual logoff procedures and any automatic termination mechanisms in action.

2. **Artifacts (I1)** - Very valuable evidence including system logs showing session establishment and termination timestamps, audit records of session activities, and connection state records.

3. **Physical Review (I3)** - Allows on-premise observation of configuration settings for session termination policies and timeout parameters.

4. **Documents (I2)** - Provides foundational evidence through policies and procedures for session termination, but needs to be supported by the other evidence types to demonstrate actual implementation.

Prioritization of Assessment Approaches

For obtaining evidence related to session termination, I recommend prioritizing approaches as:

1. **Test (C3)** - Primary approach that provides direct evidence of functionality by: 

  - Observing actual termination of nonlocal maintenance sessions
  - Verifying both manual termination procedures and automatic timeout mechanisms
  - Confirming network connections are fully closed after maintenance activities

2. **Examine (C1)** - Important supporting approach focusing on: 

  - System configuration settings for session timeouts
  - Session logs showing start and end timestamps
  - Documentation of termination policies specific to maintenance sessions

3. **Interview (C2)** - Provides contextual understanding through: 

  - Discussions with administrators about termination procedures
  - Verification that maintenance personnel understand termination requirements
  - Clarification of any automatic versus manual termination processes

Key Assessment Objects

For these approaches, these specific assessment objects would be most valuable:

    • Test:**

- Mechanisms for terminating nonlocal maintenance sessions - Network connection states before and after session termination - Verification that terminated sessions cannot be resumed without re-authentication

    • Examine:**

- System configuration settings for session timeouts - Maintenance logs showing session termination timestamps - Security procedures documenting proper session termination

    • Interview:**

- System administrators responsible for maintenance session configuration - Maintenance personnel who regularly perform nonlocal maintenance - Security personnel who monitor remote access

This comprehensive approach will provide strong evidence that nonlocal maintenance sessions are properly terminated when maintenance is complete, satisfying the requirement in MA.L2-3.7.5 [b].

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