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The source identity visible to a target can differ based on transport and load-balancing configuration. The decisive technical distinction is an ALB health check evaluates target responses on the configured protocol, port, and path; instance running state is distinct from the health check HTTP response required by the target group.

Sticky sessions influence load distribution but do not replace external durable session storage. The reported evidence instead concerns an ALB health check evaluates target responses on the configured protocol, port, and path: instance running state is distinct from the health check HTTP response required by the target group.

Deregistering a target can allow in-flight work to finish rather than immediately interrupting every request. For the stated conditions, instance running state is distinct from the health check HTTP response required by the target group. The more specific mechanism is an ALB health check evaluates target responses on the configured protocol, port, and path.

Load-balancer target timing and application processing can exceed idle or response timeout limits. In this situation, delay can result from alarm evaluation settings even when metrics correctly report a failure. The proposed change does not ensure a controlled tunnel drop triggers the expected alert within the documented evaluation window.

Unlike stateful security groups, NACLs do not automatically permit return packets for an allowed request. In this situation, delay can result from alarm evaluation settings even when metrics correctly report a failure. The proposed change does not ensure a controlled tunnel drop triggers the expected alert within the documented evaluation window.

Generating records does not guarantee they remain accessible for regulatory evidence duration. It does not directly achieve the required result: a controlled tunnel drop triggers the expected alert within the documented evaluation window. The constraint is that delay can result from alarm evaluation settings even when metrics correctly report a failure.

Central hubs still have finite limits; simply adding spokes cannot exceed those boundaries safely. That adjustment does not address the controlling condition: a route propagated into one TGW table may be invisible to another attachment using a different table. Verify the missing destination prefix appears in the intended route table and traffic succeeds.

TGW peering does not automatically propagate all local routes between peer gateways. That adjustment does not address the controlling condition: a route propagated into one TGW table may be invisible to another attachment using a different table. Verify the missing destination prefix appears in the intended route table and traffic succeeds.

A default route to a transit hub need not override longer-prefix routes for internal networks. It does not directly achieve the required result: the missing destination prefix appears in the intended route table and traffic succeeds. The constraint is that a route propagated into one TGW table may be invisible to another attachment using a different table.

A reusable CDK app can deploy to different accounts unless the target is controlled. That property alone cannot account for the reported symptom; subnets and network interface IDs are scoped to a VPC and Region, not globally interchangeable.

Event-driven notifications observe resource modifications instead of waiting for scheduled inventory scans. For the stated conditions, subnets and network interface IDs are scoped to a VPC and Region, not globally interchangeable. The more specific mechanism is region-specific subnet and resource identifiers must be resolved in the deployment target's environment.

A completed stack records one deployment state rather than permanently locking every operator console. For the stated conditions, subnets and network interface IDs are scoped to a VPC and Region, not globally interchangeable. The more specific mechanism is region-specific subnet and resource identifiers must be resolved in the deployment target's environment.

Publishing a private hosted zone alone does not expose its records to every VPC in an organization. The decisive technical distinction is public DNS delegation depends on the registrar's authoritative name-server configuration; creating records in an unused hosted zone does not cause global resolvers to query it automatically.

Simple routing alone does not make Route 53 suppress failed records based on application health. For the stated conditions, creating records in an unused hosted zone does not cause global resolvers to query it automatically. The more specific mechanism is public DNS delegation depends on the registrar's authoritative name-server configuration.

VPC Resolver may use associated private records while public internet resolvers use the public delegation. That property alone cannot account for the reported symptom; creating records in an unused hosted zone does not cause global resolvers to query it automatically.

A private DNS record invisible to ACM's validation resolvers cannot prove public domain control. The reported evidence instead concerns TLS server certificate validation alone does not require clients to present certificates: mutual TLS verifies client certificate identity separately from the listener's server certificate.

A certificate for example.com does not necessarily cover api.sub.example.com without a matching SAN or wildcard. The reported evidence instead concerns TLS server certificate validation alone does not require clients to present certificates: mutual TLS verifies client certificate identity separately from the listener's server certificate.

HTTPS transport encryption does not establish server identity when its certificate is invalid or expired. For the stated conditions, mutual TLS verifies client certificate identity separately from the listener's server certificate. The more specific mechanism is TLS server certificate validation alone does not require clients to present certificates.

A route marked blackhole cannot carry IPv4 outbound traffic regardless of instance state. The decisive technical distinction is interface endpoint replacement can change endpoint-specific DNS names and network interface addresses; privateLink connectivity should rely on supported endpoint DNS rather than hardcoded ENI addresses.

Multiple interfaces do not automatically guarantee symmetric operating-system return paths. The reported evidence instead concerns interface endpoint replacement can change endpoint-specific DNS names and network interface addresses: privateLink connectivity should rely on supported endpoint DNS rather than hardcoded ENI addresses.

A new attachment ID is not automatically equivalent to an old one for route visibility. The decisive technical distinction is interface endpoint replacement can change endpoint-specific DNS names and network interface addresses; privateLink connectivity should rely on supported endpoint DNS rather than hardcoded ENI addresses.

Creating a rule on a shared outbound endpoint does not cause every VPC to use it automatically. The needed control instead targets Route 53 Resolver query logging associations determine which VPC DNS queries are delivered to the log destination; it succeeds when events from every intended VPC appear in the central query log.

Split-horizon configuration can intentionally prevent public answers from leaking into an internal namespace. The needed control instead targets Route 53 Resolver query logging associations determine which VPC DNS queries are delivered to the log destination; it succeeds when events from every intended VPC appear in the central query log.

Private zone visibility follows VPC associations rather than AWS organization membership alone. The needed control instead targets Route 53 Resolver query logging associations determine which VPC DNS queries are delivered to the log destination; it succeeds when events from every intended VPC appear in the central query log.

No telemetry can indicate a broken collection pipeline rather than a perfectly healthy network. That property alone cannot account for the reported symptom; a successfully created flow-log resource can fail to deliver records when its sink authorization is missing.

Traffic logs cannot identify the API principal responsible for a policy change by themselves. That property alone cannot account for the reported symptom; a successfully created flow-log resource can fail to deliver records when its sink authorization is missing.

Edge delivery requests can bypass origin logs on cache hits, so origin-only auditing is incomplete. The reported evidence instead concerns VPC Flow Logs need appropriate log delivery IAM permission and destination configuration: a successfully created flow-log resource can fail to deliver records when its sink authorization is missing.

SNI allows selection of a certificate by requested hostname, not by target group alone. The needed control instead targets IPsec protects a network tunnel but does not replace application-layer TLS identity verification; it succeeds when clients accept only the approved application certificate despite using a working VPN tunnel.

Secure viewer-to-edge traffic does not protect origin traffic when the origin connection remains cleartext. The needed control instead targets IPsec protects a network tunnel but does not replace application-layer TLS identity verification; it succeeds when clients accept only the approved application certificate despite using a working VPN tunnel.

An origin secured by TLS does not protect the client-to-edge leg if HTTP remains allowed. That adjustment does not address the controlling condition: network peer authentication cannot independently prove that a particular HTTPS hostname is the intended app server. Verify clients accept only the approved application certificate despite using a working VPN tunnel.

Endpoint private addressing does not automatically enforce least-privilege client access. For the stated conditions, removing ingress permissions alone does not stop instances initiating outbound connections. The more specific mechanism is security group egress and ingress permissions are configured independently for new flows.

A successful inbound rule does not automatically authorize reply packets under a stateless ACL. The reported evidence instead concerns security group egress and ingress permissions are configured independently for new flows: removing ingress permissions alone does not stop instances initiating outbound connections.

A broad earlier deny can supersede a later allow despite permissive security groups. The reported evidence instead concerns security group egress and ingress permissions are configured independently for new flows: removing ingress permissions alone does not stop instances initiating outbound connections.