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GA improves network path selection without depending on caching HTTP objects at edge servers. That property alone cannot account for the reported symptom; weights alone can continue steering toward failed endpoints unless health status affects selection.

Encrypted packet overhead can make sizes that fit locally exceed the negotiated tunnel path. The decisive technical distinction is Route 53 health check integration can remove unhealthy records from eligible weighted DNS decisions; weights alone can continue steering toward failed endpoints unless health status affects selection.

Static records do not use geographic network-latency information to select an appropriate Region. That property alone cannot account for the reported symptom; weights alone can continue steering toward failed endpoints unless health status affects selection.

Organization membership alone does not necessarily authorize use of every privately owned network resource. The decisive technical distinction is automatic propagation into a shared table can violate a segmented transit architecture's intended isolation; central transit routing must apply least-privilege route visibility, not automatic full connectivity.

AZ placement of attachment subnets affects how traffic from workloads can use the transit hub. For the stated conditions, central transit routing must apply least-privilege route visibility, not automatic full connectivity. The more specific mechanism is automatic propagation into a shared table can violate a segmented transit architecture's intended isolation.

Local VPC propagation into a TGW does not automatically propagate onward over inter-region peering. The reported evidence instead concerns automatic propagation into a shared table can violate a segmented transit architecture's intended isolation: central transit routing must apply least-privilege route visibility, not automatic full connectivity.

Simply creating an endpoint does not redirect network packets onto the appliance data path. In this situation, private routing to a service is not an authorization grant to every bucket in that service. The proposed change does not ensure permitted objects are accessible and requests to disallowed bucket ARNs fail.

Layer-seven WAF scope cannot act as a stateful inter-VPC TCP firewall for non-HTTP traffic. The needed control instead targets VPC endpoint policies can restrict permitted actions and resources for supported endpoint types; it succeeds when permitted objects are accessible and requests to disallowed bucket ARNs fail.

Using a workload group as source narrows administrative access compared with internet-wide permission. That adjustment does not address the controlling condition: private routing to a service is not an authorization grant to every bucket in that service. Verify permitted objects are accessible and requests to disallowed bucket ARNs fail.

CloudFront's certificate region requirements differ from those of regional ALB listeners. The needed control instead targets CloudFront origin HTTPS requests validate the certificate against the origin hostname or configured request context; it succeeds when CloudFront successfully retrieves origin content over validated HTTPS after correction.

A private DNS record invisible to ACM's validation resolvers cannot prove public domain control. In this situation, modern viewer TLS does not excuse an invalid certificate in the separate origin TLS handshake. The proposed change does not ensure CloudFront successfully retrieves origin content over validated HTTPS after correction.

Load-balancer TLS termination could change where mutual authentication occurs. It does not directly achieve the required result: CloudFront successfully retrieves origin content over validated HTTPS after correction. The constraint is that modern viewer TLS does not excuse an invalid certificate in the separate origin TLS handshake.

VPC Flow Logs cannot reconstruct full TCP handshake packet order from aggregated records. That adjustment does not address the controlling condition: configuration audit events and network data-plane activity are separate evidence streams. Verify the investigation identifies both the actor's rule change and affected network flows.

A missing allowed port prevents traffic even if subnet routes and ENIs are otherwise present. The needed control instead targets cloudTrail management activity records API operations, while flow logs describe network traffic disposition; it succeeds when the investigation identifies both the actor's rule change and affected network flows.

The default record shape may omit fields needed for reliable SYN-only or RST event classification. It does not directly achieve the required result: the investigation identifies both the actor's rule change and affected network flows. The constraint is that configuration audit events and network data-plane activity are separate evidence streams.

Central policy can coordinate multi-region connectivity at a higher level than one regional Transit Gateway route table. That property alone cannot account for the reported symptom; an attached gateway cannot redirect VPC packets that lack a subnet route targeting the attachment.

Resource ownership and spoke VPC ownership can remain separate while attachments are governed centrally. That property alone cannot account for the reported symptom; an attached gateway cannot redirect VPC packets that lack a subnet route targeting the attachment.

A targeted blackhole route prevents forwarding to otherwise reachable next hops for its matching destination. The decisive technical distinction is VPC subnet route tables and Transit Gateway route tables are separate forwarding decisions; an attached gateway cannot redirect VPC packets that lack a subnet route targeting the attachment.

Path patterns can route requests to distinct caching policies while sharing a distribution. That property alone cannot account for the reported symptom; the accelerator uses edge entry points and the AWS global network without requiring content caching.

Caching responses without segregating identity-sensitive dimensions can disclose one user's representation to another. The reported evidence instead concerns global Accelerator can move client TCP or UDP traffic onto the AWS global network near the user: the accelerator uses edge entry points and the AWS global network without requiring content caching.

Edge delivery reduces round-trip and origin load for reusable media segments compared with direct distant origin calls. That property alone cannot account for the reported symptom; the accelerator uses edge entry points and the AWS global network without requiring content caching.

Asymmetric routing sends the reverse packets through missing firewall state or around inspection controls. The decisive technical distinction is gateway endpoints require VPC route entries targeting the endpoint for intended inspected traffic; simply creating an endpoint does not redirect network packets onto the appliance data path.

Client-to-ALB acceptance does not imply that targets allow connections originated by the ALB. For the stated conditions, simply creating an endpoint does not redirect network packets onto the appliance data path. The more specific mechanism is gateway endpoints require VPC route entries targeting the endpoint for intended inspected traffic.

A deployed firewall cannot inspect packets that bypass its endpoint in the routing table. The reported evidence instead concerns gateway endpoints require VPC route entries targeting the endpoint for intended inspected traffic: simply creating an endpoint does not redirect network packets onto the appliance data path.

Mirroring session configuration alone cannot overcome an unsupported source interface class. That adjustment does not address the controlling condition: network-layer admission can succeed even when the destination application does not accept connections. Verify the application socket responds once the listener is fixed, without changing valid VPC routes.

Interface byte totals measure volume while flow records attribute traffic to IPs and ports. It does not directly achieve the required result: the application socket responds once the listener is fixed, without changing valid VPC routes. The constraint is that network-layer admission can succeed even when the destination application does not accept connections.

Load-balancer target timing and application processing can exceed idle or response timeout limits. The needed control instead targets a flow-log ACCEPT does not prove a socket listener or end-to-end application response exists; it succeeds when the application socket responds once the listener is fixed, without changing valid VPC routes.

Mutual TLS verifies client certificate identity separately from the listener's server certificate. The reported evidence instead concerns iKE pre-shared key authentication fails when the VPN peers do not use the same secret: a tunnel's encryption algorithm can remain supported while authentication fails because keys differ.

Possession of the server private key enables impersonation even when its certificate is public. The reported evidence instead concerns iKE pre-shared key authentication fails when the VPN peers do not use the same secret: a tunnel's encryption algorithm can remain supported while authentication fails because keys differ.

Load-balancer TLS termination could change where mutual authentication occurs. The decisive technical distinction is iKE pre-shared key authentication fails when the VPN peers do not use the same secret; a tunnel's encryption algorithm can remain supported while authentication fails because keys differ.

An attachment can have a different associated routing view from where its CIDR propagates. The reported evidence instead concerns Transit Gateway VPC attachments require subnets in supported Availability Zones for local TGW attachment connectivity: aZ placement of attachment subnets affects how traffic from workloads can use the transit hub.

The most specific matching blackhole takes precedence over a broader valid route. For the stated conditions, aZ placement of attachment subnets affects how traffic from workloads can use the transit hub. The more specific mechanism is Transit Gateway VPC attachments require subnets in supported Availability Zones for local TGW attachment connectivity.

Organization membership alone does not necessarily authorize use of every privately owned network resource. The decisive technical distinction is Transit Gateway VPC attachments require subnets in supported Availability Zones for local TGW attachment connectivity; aZ placement of attachment subnets affects how traffic from workloads can use the transit hub.