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Mutual TLS verifies client certificate identity separately from the listener's server certificate. The decisive technical distinction is tCP pass-through leaves the application backend responsible for TLS authentication and certificate policy; load-balancer TLS termination could change where mutual authentication occurs.

A trusted CA becomes a powerful impersonation tool if issuance permissions are overly broad. For the stated conditions, load-balancer TLS termination could change where mutual authentication occurs. The more specific mechanism is tCP pass-through leaves the application backend responsible for TLS authentication and certificate policy.

A certificate for example.com does not necessarily cover api.sub.example.com without a matching SAN or wildcard. For the stated conditions, load-balancer TLS termination could change where mutual authentication occurs. The more specific mechanism is tCP pass-through leaves the application backend responsible for TLS authentication and certificate policy.

Availability-zone placement can change recurring traffic charges even within a Region. The decisive technical distinction is CloudFront edge caching can reduce origin data-transfer demand and download latency for reusable binaries; repeated cache hits offload the regional origin and reduce long-haul delivery for static content.

A nonzero configured minimum TTL may cause caching even when an origin asks not to cache. The decisive technical distinction is CloudFront edge caching can reduce origin data-transfer demand and download latency for reusable binaries; repeated cache hits offload the regional origin and reduce long-haul delivery for static content.

Static records do not use geographic network-latency information to select an appropriate Region. The decisive technical distinction is CloudFront edge caching can reduce origin data-transfer demand and download latency for reusable binaries; repeated cache hits offload the regional origin and reduce long-haul delivery for static content.

A technically signed certificate is not trusted unless the verifier has the appropriate CA chain. The reported evidence instead concerns a valid server certificate chain and matching hostname are necessary for trusted TLS connections: hTTPS transport encryption does not establish server identity when its certificate is invalid or expired.

A signed child zone alone does not prove authenticity to validators without the parent trust chain. That property alone cannot account for the reported symptom; hTTPS transport encryption does not establish server identity when its certificate is invalid or expired.

Mutual TLS verifies client certificate identity separately from the listener's server certificate. The reported evidence instead concerns a valid server certificate chain and matching hostname are necessary for trusted TLS connections: hTTPS transport encryption does not establish server identity when its certificate is invalid or expired.

Failback requires explicit routing preference rather than assuming an active link automatically dominates. In this situation, successful small packets do not demonstrate that larger Ethernet frames traverse every hybrid hop. The proposed change does not ensure the previously failing large TCP transfers complete without fragmentation-related timeouts.

Endpoint availability in one VPC does not automatically change corporate DNS resolution for the service. It does not directly achieve the required result: the previously failing large TCP transfers complete without fragmentation-related timeouts. The constraint is that successful small packets do not demonstrate that larger Ethernet frames traverse every hybrid hop.

An association change can alter BGP-originated reachability without deleting the physical VIF. It does not directly achieve the required result: the previously failing large TCP transfers complete without fragmentation-related timeouts. The constraint is that successful small packets do not demonstrate that larger Ethernet frames traverse every hybrid hop.

Static records do not use geographic network-latency information to select an appropriate Region. In this situation, managing many peer connections can outweigh TGW operating costs at high network scale. The proposed change does not ensure new account onboarding requires fewer independent network connection and route updates.

Service-level private connectivity avoids exposing unrelated provider address ranges to consumers. It does not directly achieve the required result: new account onboarding requires fewer independent network connection and route updates. The constraint is that managing many peer connections can outweigh TGW operating costs at high network scale.

GA improves network path selection without depending on caching HTTP objects at edge servers. In this situation, managing many peer connections can outweigh TGW operating costs at high network scale. The proposed change does not ensure new account onboarding requires fewer independent network connection and route updates.

An attached TGW does not automatically redirect packets that a VPC subnet table sends elsewhere. The needed control instead targets iPv4 private-subnet internet egress requires a valid NAT route and functioning upstream gateway; it succeeds when patch downloads succeed outbound while instances remain without publicly reachable IPv4 addresses.

IP connectivity and DNS namespace visibility are separate controls in multi-account architectures. That adjustment does not address the controlling condition: a private instance cannot use an Internet Gateway directly without public address and appropriate routing. Verify patch downloads succeed outbound while instances remain without publicly reachable IPv4 addresses.

Full routed connectivity cannot uniquely identify two networks advertising identical address ranges. In this situation, a private instance cannot use an Internet Gateway directly without public address and appropriate routing. The proposed change does not ensure patch downloads succeed outbound while instances remain without publicly reachable IPv4 addresses.

A healthy NLB can still direct clients to overloaded targets when the target fleet is undersized. For the stated conditions, subnet boundaries are a unit for route and ACL policy in addition to IP address capacity. The more specific mechanism is subnet segmentation can establish distinct routing and network ACL boundaries for application tiers.

Central segment policy can simplify management at scale compared with many unrelated regional route tables. For the stated conditions, subnet boundaries are a unit for route and ACL policy in addition to IP address capacity. The more specific mechanism is subnet segmentation can establish distinct routing and network ACL boundaries for application tiers.

Service-level private connectivity avoids exposing unrelated provider address ranges to consumers. The reported evidence instead concerns subnet segmentation can establish distinct routing and network ACL boundaries for application tiers: subnet boundaries are a unit for route and ACL policy in addition to IP address capacity.

Packets bypassing the inspection return path break state consistency and can violate security policy. It does not directly achieve the required result: test packets arrive at the vendor appliance through the configured endpoint route. The constraint is that simply creating an endpoint does not redirect network packets onto the appliance data path.

Layer-seven WAF scope cannot act as a stateful inter-VPC TCP firewall for non-HTTP traffic. That adjustment does not address the controlling condition: simply creating an endpoint does not redirect network packets onto the appliance data path. Verify test packets arrive at the vendor appliance through the configured endpoint route.

Asymmetric routing sends the reverse packets through missing firewall state or around inspection controls. The needed control instead targets gateway endpoints require VPC route entries targeting the endpoint for intended inspected traffic; it succeeds when test packets arrive at the vendor appliance through the configured endpoint route.

Alarm state depends on time-window evaluation and missing-data policy, not merely one isolated datapoint. In this situation, a defined mirror session cannot produce packets if its source or destination is unsupported or misconfigured. The proposed change does not ensure the packet analyzer receives test traffic after a supported source and target path is established.

The load balancer's status can differ from the response produced or not produced by a backend target. In this situation, a defined mirror session cannot produce packets if its source or destination is unsupported or misconfigured. The proposed change does not ensure the packet analyzer receives test traffic after a supported source and target path is established.

Default flow formats may omit the extra context needed to distinguish transport behavior. In this situation, a defined mirror session cannot produce packets if its source or destination is unsupported or misconfigured. The proposed change does not ensure the packet analyzer receives test traffic after a supported source and target path is established.

Connectivity cost depends on throughput, direction and provider fees, not solely connection type labels. For the stated conditions, availability-zone placement can change recurring traffic charges even within a Region. The more specific mechanism is cross-AZ traffic paths can add latency and transfer charges relative to well-placed local dependencies.

Centralization simplifies topology but may cost more for bulk traffic than appropriate local paths. The reported evidence instead concerns cross-AZ traffic paths can add latency and transfer charges relative to well-placed local dependencies: availability-zone placement can change recurring traffic charges even within a Region.

Keeping outbound traffic in the same AZ can reduce cross-zone forwarding and improve failure isolation. The reported evidence instead concerns cross-AZ traffic paths can add latency and transfer charges relative to well-placed local dependencies: availability-zone placement can change recurring traffic charges even within a Region.

A successful inbound rule does not automatically authorize reply packets under a stateless ACL. It does not directly achieve the required result: approved clients establish HTTPS connections while other inbound ports stay blocked. The constraint is that outbound permission does not initiate an inbound web listener connection through stateful SG evaluation.

Security groups lack explicit deny rules while NACL rule-order processing can enforce a scoped subnet deny. It does not directly achieve the required result: approved clients establish HTTPS connections while other inbound ports stay blocked. The constraint is that outbound permission does not initiate an inbound web listener connection through stateful SG evaluation.

Endpoint private addressing does not automatically enforce least-privilege client access. In this situation, outbound permission does not initiate an inbound web listener connection through stateful SG evaluation. The proposed change does not ensure approved clients establish HTTPS connections while other inbound ports stay blocked.