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Approval alone cannot fix the specific weakness: Physical location does not prove endpoint identity or compliance.

The subsequent circumstance is separate and does not explain why this proposed action fails the initial case. Post-admission change of authorization is needed when device trust deteriorates after initial admission.

Destroying records would weaken oversight and cannot remedy the immediate technical or governance flaw: Physical location does not prove endpoint identity or compliance.

An unexecuted future plan does not prove current effectiveness for the stated 4.2 objective. The evidence should include: An unregistered test laptop is denied or isolated while a compliant managed endpoint is admitted.

Absence of reported incidents is not a controlled validation of the requirement. A stronger proof is: An unregistered test laptop is denied or isolated while a compliant managed endpoint is admitted.

Discussion of a different design does not demonstrate the deployed control. Post-admission change of authorization is needed when device trust deteriorates after initial admission.

This addresses the original situation: Port-level authentication and admission controls prevent unknown devices from automatically joining trusted access segments. It does not directly meet the changed requirement: An already admitted endpoint later fails its security posture baseline.

The earlier rejected approach remains inappropriate. Physical location does not prove endpoint identity or compliance.

The new requirement needs an accountable response, not automatic deferral. Post-admission change of authorization is needed when device trust deteriorates after initial admission.

This response addresses a different condition: An enterprise access switch cannot distinguish approved laptops from unauthorized devices plugged into open meeting rooms. The present case requires the measure described by Harden management plane, remove defaults and restrict access to an isolated administration network.

URL obscurity is not identity enforcement or transport isolation. The proposal would not be defensible for this case.

This is appropriate for a later condition (Engineers need emergency access to restore routing during an outage.), but it does not directly resolve the initial need. Out-of-band pathways must preserve availability without reopening public management.

This is an advantage of another design (Automate configuration comparison, drift alerts and controlled restoration against a versioned baseline.), not the particular flaw of Keep default credentials but hide the login page with a different URL.

This is a limitation elsewhere: A security architect has no assurance that a branch router's running configuration matches the approved hardened template. It does not explain the deficiency of the specified proposed approach.

This explains a later shift in requirements (Engineers need emergency access to restore routing during an outage.), not the failure of the current proposal.

An approved change without an executed test cannot prove operating effectiveness. The needed evidence is Config audits show strong named admin access and no externally reachable management services.

This demonstrates controls in another circumstance: A company uses unmanaged USB network adapters that create secondary connections bypassing standard host firewall policy.

This other observation is relevant to: A two-site network relies on a single router pair in one building for every site-to-site communication path.

This is a record of how the initial safeguard would be checked, not an action implementing the newly requested condition: Config audits show strong named admin access and no externally reachable management services.

This is the appropriate response to the original situation: Management-plane compromise can give attackers full traffic and configuration control. It does not directly meet the new condition.

This remains inappropriate: URL obscurity is not identity enforcement or transport isolation.

MAC identity can be spoofed and says nothing about user or device posture. The proposal would not be defensible for this case.

This is appropriate for a later condition (An already registered workstation becomes infected during an active session.), but it does not directly resolve the initial need. Continuous device trust is needed after initial admission.

This response addresses a different condition: A security architect has no assurance that a branch router's running configuration matches the approved hardened template. The present case requires the measure described by Deploy identity-aware network access control with compliant endpoint posture and guest quarantine.

This is a limitation elsewhere: A company uses unmanaged USB network adapters that create secondary connections bypassing standard host firewall policy. It does not explain the deficiency of the specified proposed approach.

This explains a later shift in requirements (An already registered workstation becomes infected during an active session.), not the failure of the current proposal.

This is an advantage of another design (Apply endpoint device control and inventory for unauthorized network interfaces.), not the particular flaw of Allow access whenever the device's MAC address resembles a known manufacturer.

This demonstrates controls in another circumstance: A cloud firewall allows east-west traffic from any security group member regardless of workload purpose.

This other observation is relevant to: A network device ships with default management credentials and internet-facing administrative services.

An approved change without an executed test cannot prove operating effectiveness. The needed evidence is Unknown test endpoints enter quarantine while compliant devices get only approved VLANs.

This is the appropriate response to the original situation: Physical jack access alone should not grant sensitive LAN privileges. It does not directly meet the new condition.

This remains inappropriate: MAC identity can be spoofed and says nothing about user or device posture.

This is a record of how the initial safeguard would be checked, not an action implementing the newly requested condition: Unknown test endpoints enter quarantine while compliant devices get only approved VLANs.