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Traffic logs cannot identify the API principal responsible for a policy change by themselves. In this situation, lack of a log record is not definitive proof of absence of every packet event. The proposed change does not ensure the investigation states collection limitations and uses independent evidence to reconstruct the incident.

No telemetry can indicate a broken collection pipeline rather than a perfectly healthy network. The needed control instead targets flow Logs have collection, delivery and best-effort visibility limitations and are not exhaustive packet capture; it succeeds when the investigation states collection limitations and uses independent evidence to reconstruct the incident.

Packet mirroring provides payload visibility where allowed, while flow logs provide summarized metadata. In this situation, lack of a log record is not definitive proof of absence of every packet event. The proposed change does not ensure the investigation states collection limitations and uses independent evidence to reconstruct the incident.

Target discovery must follow workload life cycle to avoid forwarding to stopped or obsolete tasks. It does not directly achieve the required result: observed throughput and packet-processing efficiency improve under the same test load. The constraint is that enhanced networking reduces virtualization overhead when the instance and driver support the feature.

A large AWS frame cannot traverse a lower-MTU intermediate segment without compatible handling. That adjustment does not address the controlling condition: enhanced networking reduces virtualization overhead when the instance and driver support the feature. Verify observed throughput and packet-processing efficiency improve under the same test load.

A nominal bandwidth rating alone does not establish packet-processing performance for tiny packets. It does not directly achieve the required result: observed throughput and packet-processing efficiency improve under the same test load. The constraint is that enhanced networking reduces virtualization overhead when the instance and driver support the feature.

Static NLB frontend addressing suits IP allowlisting while ALB addresses may change over time. That property alone cannot account for the reported symptom; the ALB can terminate viewer TLS and route decrypted HTTP requests using application conditions.

GWLB is designed for appliance insertion rather than content-based ALB routing or general TCP endpoints alone. For the stated conditions, the ALB can terminate viewer TLS and route decrypted HTTP requests using application conditions. The more specific mechanism is application Load Balancer supports HTTPS listeners with ACM certificate association and HTTP rules.

TCP pass-through leaves the application backend responsible for certificate and TLS session handling. For the stated conditions, the ALB can terminate viewer TLS and route decrypted HTTP requests using application conditions. The more specific mechanism is application Load Balancer supports HTTPS listeners with ACM certificate association and HTTP rules.

Inbound endpoints bring permitted DNS queries into the VPC resolver, unlike outbound endpoints sending them out. That adjustment does not address the controlling condition: multivalue answers are not a full load balancer but can reduce returning unhealthy addresses. Verify queries return only eligible healthy addresses from the configured endpoint set.

VPC DNS does not automatically forward an arbitrary private namespace to on-premises without a rule. That adjustment does not address the controlling condition: multivalue answers are not a full load balancer but can reduce returning unhealthy addresses. Verify queries return only eligible healthy addresses from the configured endpoint set.

Shared rule associations centralize hybrid name forwarding while endpoint capacity and connectivity remain separate concerns. In this situation, multivalue answers are not a full load balancer but can reduce returning unhealthy addresses. The proposed change does not ensure queries return only eligible healthy addresses from the configured endpoint set.

An attachment can have a different associated routing view from where its CIDR propagates. It does not directly achieve the required result: the branch enters its intended segment and receives only permitted core routes. The constraint is that connectivity is driven by policy evaluation, not merely existence of a physical or logical attachment.

An attached TGW does not automatically redirect packets that a VPC subnet table sends elsewhere. The needed control instead targets cloud WAN attachment policy mapping determines segment membership and allowed routing relationships; it succeeds when the branch enters its intended segment and receives only permitted core routes.

Full routed connectivity cannot uniquely identify two networks advertising identical address ranges. The needed control instead targets cloud WAN attachment policy mapping determines segment membership and allowed routing relationships; it succeeds when the branch enters its intended segment and receives only permitted core routes.

VGW allowed-prefix filters cannot force unsupported more-specific VPC routes to appear in BGP. The reported evidence instead concerns IPsec VPN NAT traversal can encapsulate IPsec traffic in UDP where supported: NAT can modify addresses that invalidate native IPsec behavior unless NAT-T is negotiated.

A static routing arrangement does not automatically form BGP adjacencies or exchange advertisements. For the stated conditions, NAT can modify addresses that invalidate native IPsec behavior unless NAT-T is negotiated. The more specific mechanism is IPsec VPN NAT traversal can encapsulate IPsec traffic in UDP where supported.

Dedicated connectivity avoids relying exclusively on public internet paths but does not inherently encrypt payloads. The reported evidence instead concerns IPsec VPN NAT traversal can encapsulate IPsec traffic in UDP where supported: NAT can modify addresses that invalidate native IPsec behavior unless NAT-T is negotiated.

Local IAM allow statements cannot override an explicit effective Organizations deny. The needed control instead targets cloudFormation Guard or policy-as-code checks can reject disallowed network resource configurations before deployment; it succeeds when a prohibited public-route template fails the predeployment control while compliant templates pass.

CDK is an authoring layer, not a replacement for CloudFormation's deployed resource lifecycle. It does not directly achieve the required result: a prohibited public-route template fails the predeployment control while compliant templates pass. The constraint is that iaC syntax validity does not establish compliance with organizational network policy.

High-level constructs can create network defaults that differ from a specific compliance design if inputs are vague. The needed control instead targets cloudFormation Guard or policy-as-code checks can reject disallowed network resource configurations before deployment; it succeeds when a prohibited public-route template fails the predeployment control while compliant templates pass.

An attachment can have a different associated routing view from where its CIDR propagates. That property alone cannot account for the reported symptom; peering routes do not permit arbitrary traversal through another VPC's internet or VPN gateway.

An attached TGW does not automatically redirect packets that a VPC subnet table sends elsewhere. The reported evidence instead concerns VPC peering is not a general transit route through a peer's gateway or onward peering connections: peering routes do not permit arbitrary traversal through another VPC's internet or VPN gateway.

The most specific matching blackhole takes precedence over a broader valid route. That property alone cannot account for the reported symptom; peering routes do not permit arbitrary traversal through another VPC's internet or VPN gateway.

A nonzero configured minimum TTL may cause caching even when an origin asks not to cache. The reported evidence instead concerns preoptimized or edge-generated appropriate image variants can reduce payload transfer for mobile users: transferring unnecessary image bytes increases user latency even when an edge cache is warm.

Keeping outbound traffic in the same AZ can reduce cross-zone forwarding and improve failure isolation. For the stated conditions, transferring unnecessary image bytes increases user latency even when an edge cache is warm. The more specific mechanism is preoptimized or edge-generated appropriate image variants can reduce payload transfer for mobile users.

GA improves network path selection without depending on caching HTTP objects at edge servers. For the stated conditions, transferring unnecessary image bytes increases user latency even when an edge cache is warm. The more specific mechanism is preoptimized or edge-generated appropriate image variants can reduce payload transfer for mobile users.

Gateway attachments are route targets; incorrect associations can blackhole return flows despite healthy tunnels. The decisive technical distinction is tGW route-table associations determine which routing view is used when traffic enters each attachment; the propagated VPN prefix may exist in a different TGW table than the one used by the application VPC.

No BGP propagation exists to fill missing route entries in a static-only configuration. The decisive technical distinction is tGW route-table associations determine which routing view is used when traffic enters each attachment; the propagated VPN prefix may exist in a different TGW table than the one used by the application VPC.

An active VIF and BGP session do not automatically override VPC subnet forwarding decisions. The reported evidence instead concerns tGW route-table associations determine which routing view is used when traffic enters each attachment: the propagated VPN prefix may exist in a different TGW table than the one used by the application VPC.

An allowed prefix list for a Transit Gateway is not merely filtering VPC advertisement as in VGW associations. That property alone cannot account for the reported symptom; physical layer availability does not prove that the layer-three routing adjacency is correctly configured.

Public VIF traffic uses public AWS addresses even when the physical transport is dedicated. That property alone cannot account for the reported symptom; physical layer availability does not prove that the layer-three routing adjacency is correctly configured.

The virtual interface type determines whether connectivity targets private VPC addresses or public AWS endpoints. For the stated conditions, physical layer availability does not prove that the layer-three routing adjacency is correctly configured. The more specific mechanism is Direct Connect routing depends on matching BGP peer ASN, addresses and VLAN-level configuration.