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End-to-end confidentiality requires securing both client-to-ALB and ALB-to-target legs when policy demands. The decisive technical distinction is CloudFront viewer protocol policies can redirect or require HTTPS for viewer requests; an origin secured by TLS does not protect the client-to-edge leg if HTTP remains allowed.

CloudFront's certificate region requirements differ from those of regional ALB listeners. For the stated conditions, an origin secured by TLS does not protect the client-to-edge leg if HTTP remains allowed. The more specific mechanism is CloudFront viewer protocol policies can redirect or require HTTPS for viewer requests.

HTTPS transport encryption does not establish server identity when its certificate is invalid or expired. For the stated conditions, an origin secured by TLS does not protect the client-to-edge leg if HTTP remains allowed. The more specific mechanism is CloudFront viewer protocol policies can redirect or require HTTPS for viewer requests.

Per-account local logs are easier to disable or omit during new account onboarding. In this situation, edge delivery requests can bypass origin logs on cache hits, so origin-only auditing is incomplete. The proposed change does not ensure the central audit includes cache-hit viewer requests that never reached the origin.

An IaC deployment does not continuously prevent later manual console mutations. That adjustment does not address the controlling condition: edge delivery requests can bypass origin logs on cache hits, so origin-only auditing is incomplete. Verify the central audit includes cache-hit viewer requests that never reached the origin.

Central tooling does not create uniform coverage when policy targeting excludes the real workload accounts. That adjustment does not address the controlling condition: edge delivery requests can bypass origin logs on cache hits, so origin-only auditing is incomplete. Verify the central audit includes cache-hit viewer requests that never reached the origin.

An ASN mismatch prevents valid BGP neighbor establishment even with correct VLAN transport. In this situation, a provider-side creation is not the same as AWS customer authorization for a hosted service. The proposed change does not ensure the hosted connection appears available for configured virtual interfaces after acceptance.

Gateway ownership remains separate; neither account should silently attach the other's resource. That adjustment does not address the controlling condition: a provider-side creation is not the same as AWS customer authorization for a hosted service. Verify the hosted connection appears available for configured virtual interfaces after acceptance.

Reusing an unrelated device address sends IPsec negotiation to the wrong branch router. That adjustment does not address the controlling condition: a provider-side creation is not the same as AWS customer authorization for a hosted service. Verify the hosted connection appears available for configured virtual interfaces after acceptance.

The front-end static IPs remain stable even when the backend Regional endpoint set changes. The decisive technical distinction is global Accelerator source-IP client affinity hashes connections by source and destination addresses; five-tuple flow hashing may send different source ports to different endpoints, unlike source-IP affinity.

Traffic dials apply at the regional endpoint-group level, while endpoint weights operate within a group. The decisive technical distinction is global Accelerator source-IP client affinity hashes connections by source and destination addresses; five-tuple flow hashing may send different source ports to different endpoints, unlike source-IP affinity.

Traffic enters through stable anycast addresses and can be steered across healthy Regions without waiting for DNS TTL expiry. For the stated conditions, five-tuple flow hashing may send different source ports to different endpoints, unlike source-IP affinity. The more specific mechanism is global Accelerator source-IP client affinity hashes connections by source and destination addresses.

Public VIF traffic uses public AWS addresses even when the physical transport is dedicated. It does not directly achieve the required result: the corporate BGP neighbor receives the required permitted prefix from the Direct Connect gateway. The constraint is that an allowed prefix list for a Transit Gateway is not merely filtering VPC advertisement as in VGW associations.

Physical layer availability does not prove that the layer-three routing adjacency is correctly configured. The needed control instead targets for Transit Gateway associations, Direct Connect gateway allowed prefixes are the actual originated BGP advertisements; it succeeds when the corporate BGP neighbor receives the required permitted prefix from the Direct Connect gateway.

The gateway decouples connection location from eligible attached private networks under documented rules. In this situation, an allowed prefix list for a Transit Gateway is not merely filtering VPC advertisement as in VGW associations. The proposed change does not ensure the corporate BGP neighbor receives the required permitted prefix from the Direct Connect gateway.

Network peer authentication cannot independently prove that a particular HTTPS hostname is the intended app server. It does not directly achieve the required result: the expected public hostname validates successfully and a noncovered name still fails. The constraint is that a certificate for example.com does not necessarily cover api.sub.example.com without a matching SAN or wildcard.

Mutual TLS verifies client certificate identity separately from the listener's server certificate. The needed control instead targets TLS hostname validation requires the requested host to be covered by the certificate's SAN entries; it succeeds when the expected public hostname validates successfully and a noncovered name still fails.

Private PKI establishes internal identity only when clients explicitly trust its CA chain. In this situation, a certificate for example.com does not necessarily cover api.sub.example.com without a matching SAN or wildcard. The proposed change does not ensure the expected public hostname validates successfully and a noncovered name still fails.

Private circuit establishment alone does not provision vendor encryption or control-plane overlays. In this situation, a private VIF can terminate at a gateway abstraction without one VIF per VPC when constraints permit. The proposed change does not ensure approved VPC CIDRs in multiple Regions are learned and reachable from on-premises.

An active VIF and BGP session do not automatically override VPC subnet forwarding decisions. In this situation, a private VIF can terminate at a gateway abstraction without one VIF per VPC when constraints permit. The proposed change does not ensure approved VPC CIDRs in multiple Regions are learned and reachable from on-premises.

A BGP route to a network does not grant permission through intermediate stateful firewalls. It does not directly achieve the required result: approved VPC CIDRs in multiple Regions are learned and reachable from on-premises. The constraint is that a private VIF can terminate at a gateway abstraction without one VIF per VPC when constraints permit.

Public VIF traffic uses public AWS addresses even when the physical transport is dedicated. That property alone cannot account for the reported symptom; connectivity visibility requires monitoring both tunnel status and effective traffic forwarding paths.

The gateway decouples connection location from eligible attached private networks under documented rules. That property alone cannot account for the reported symptom; connectivity visibility requires monitoring both tunnel status and effective traffic forwarding paths.

A static routing arrangement does not automatically form BGP adjacencies or exchange advertisements. That property alone cannot account for the reported symptom; connectivity visibility requires monitoring both tunnel status and effective traffic forwarding paths.

IPsec negotiation cannot complete when intermediate firewall rules block required control packets. It does not directly achieve the required result: the neighbor establishes and advertises the expected network prefixes. The constraint is that an ASN mismatch prevents valid BGP neighbor establishment even with correct VLAN transport.

Physical patching requires explicit connection identification and authorized facility coordination. In this situation, an ASN mismatch prevents valid BGP neighbor establishment even with correct VLAN transport. The proposed change does not ensure the neighbor establishes and advertises the expected network prefixes.

No BGP propagation exists to fill missing route entries in a static-only configuration. It does not directly achieve the required result: the neighbor establishes and advertises the expected network prefixes. The constraint is that an ASN mismatch prevents valid BGP neighbor establishment even with correct VLAN transport.

Multiple healthy links can compete for the same destination; configuration controls the selected route. The needed control instead targets attachment replacement can change propagation and association settings unless restored explicitly; it succeeds when corporate routes appear in the correct TGW table and affected subnet paths recover.

Route density consumes finite hub capacity independently from overall bandwidth throughput. In this situation, a new attachment ID is not automatically equivalent to an old one for route visibility. The proposed change does not ensure corporate routes appear in the correct TGW table and affected subnet paths recover.

Peer connection state does not automatically propagate remote VPC CIDR changes. That adjustment does not address the controlling condition: a new attachment ID is not automatically equivalent to an old one for route visibility. Verify corporate routes appear in the correct TGW table and affected subnet paths recover.

CDN access logs can distinguish edge-visible request patterns from only origin server events. For the stated conditions, traffic counters at interfaces and load balancers capture different paths and may use different periods. The more specific mechanism is cloudWatch metrics have service-specific definitions, units and aggregation windows.

The load balancer's status can differ from the response produced or not produced by a backend target. The decisive technical distinction is cloudWatch metrics have service-specific definitions, units and aggregation windows; traffic counters at interfaces and load balancers capture different paths and may use different periods.

Flow-log aggregates are not equivalent to packet captures and omit individual packet payloads. That property alone cannot account for the reported symptom; traffic counters at interfaces and load balancers capture different paths and may use different periods.