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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.

Configuration drift may occur after deployment through operators or compromise. The proposal would not be defensible for this case.

This is appropriate for a later condition (A vendor patch legitimately changes required default syntax.), but it does not directly resolve the initial need. Expected configuration evolution should be distinguished from unauthorized drift.

This response addresses a different condition: A company uses unmanaged USB network adapters that create secondary connections bypassing standard host firewall policy. The present case requires the measure described by Automate configuration comparison, drift alerts and controlled restoration against a versioned baseline.

This is a limitation elsewhere: A cloud firewall allows east-west traffic from any security group member regardless of workload purpose. It does not explain the deficiency of the specified proposed approach.

This explains a later shift in requirements (A vendor patch legitimately changes required default syntax.), not the failure of the current proposal.

This is an advantage of another design (Refine security-group rules by workload identity, service port and approved peer relationships.), not the particular flaw of Assume the initial installation checklist proves ongoing compliance indefinitely.

This demonstrates controls in another circumstance: A two-site network relies on a single router pair in one building for every site-to-site communication path.

This other observation is relevant to: An enterprise access switch cannot distinguish approved laptops from unauthorized devices plugged into open meeting rooms.

An approved change without an executed test cannot prove operating effectiveness. The needed evidence is Daily comparison detects deliberately changed management ACL and initiates review.

This is the appropriate response to the original situation: Baseline checking reveals unintended changes on critical network components. It does not directly meet the new condition.

This remains inappropriate: Configuration drift may occur after deployment through operators or compromise.

This is a record of how the initial safeguard would be checked, not an action implementing the newly requested condition: Daily comparison detects deliberately changed management ACL and initiates review.

External paths may evade central network filtering when hosts add interfaces.

This concerns a later and different need: Emergency diagnostics require a vendor-controlled adapter on one host. Temporary operational need requires managed exception rather than globally allowing adapters.

The proposed control fits another scenario: A cloud firewall allows east-west traffic from any security group member regardless of workload purpose. It does not directly address this scenario's primary requirement.

This explains a later shift in requirements (Emergency diagnostics require a vendor-controlled adapter on one host.), not the failure of the current proposal.

This is an advantage of another design (Design diverse fault domains and redundant routing that meets business availability objectives.), not the particular flaw of Rely exclusively on core-router ACLs without checking endpoint side channels.

This is a limitation elsewhere: A two-site network relies on a single router pair in one building for every site-to-site communication path. It does not explain the deficiency of the specified proposed approach.

This other observation is relevant to: A security architect has no assurance that a branch router's running configuration matches the approved hardened template.

An approved change without an executed test cannot prove operating effectiveness. The needed evidence is Unapproved adapters are blocked and monitored, while approved maintenance devices are traceable.

This demonstrates controls in another circumstance: A network device ships with default management credentials and internet-facing administrative services.

This remains inappropriate: External paths may evade central network filtering when hosts add interfaces.

This is a record of how the initial safeguard would be checked, not an action implementing the newly requested condition: Unapproved adapters are blocked and monitored, while approved maintenance devices are traceable.

This is the appropriate response to the original situation: Uncontrolled adapters can create hidden or unmonitored ingress and egress paths. It does not directly meet the new condition.

This response addresses a different condition: A two-site network relies on a single router pair in one building for every site-to-site communication path. The present case requires the measure described by Refine security-group rules by workload identity, service port and approved peer relationships.

Edge-only filtering cannot contain compromise within the cloud environment. The proposal would not be defensible for this case.

This is appropriate for a later condition (An autoscaling application adds ephemeral instances each hour.), but it does not directly resolve the initial need. Dynamic cloud membership requires policy abstraction that scales with legitimate instances.

This is an advantage of another design (Harden management plane, remove defaults and restrict access to an isolated administration network.), not the particular flaw of Keep an 'allow all internal traffic' policy because a public edge firewall exists.

This is a limitation elsewhere: A network device ships with default management credentials and internet-facing administrative services. It does not explain the deficiency of the specified proposed approach.

This explains a later shift in requirements (An autoscaling application adds ephemeral instances each hour.), not the failure of the current proposal.