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Image pull permission concerns registry reads, not external client reachability. Review the app ingress setting and Container Apps environment network.

Pushing a new image does not automatically change every running deployment. Tags and digests determine which image revision is requested. This matters here because a private backend Container App is unexpectedly reachable from public clients.

ACI VNet integration uses supported subnet configuration to give the group private connectivity. A private registry alone does not connect it to a VNet. This matters here because a private backend Container App is unexpectedly reachable from public clients.

Outbound VNet integration does not inherently make an App Service web endpoint private. Inbound restrictions are a different feature. This matters here because a customer portal should accept requests only from corporate public IP ranges. Which setting provides filtering.

HTTPS Only enforces secure transport for inbound web requests. A valid certificate without enforcement does not guarantee every user avoids HTTP. This matters here because a customer portal should accept requests only from corporate public IP ranges. Which setting provides filtering.

A correct secret URI is only one prerequisite. Key Vault references require authorized network reachability and identity permissions. This matters here because a customer portal should accept requests only from corporate public IP ranges. Which setting provides filtering.

Automatic scaling can override manual counts according to configured profiles. The effective autoscale policy must align with the event plan. This matters here because an approved Azure Front Door route is blocked by an App Service IP rule after deployment.

App settings are injected into the runtime environment and can be marked slot-specific. Image baking is unsuitable for secrets. This matters here because an approved Azure Front Door route is blocked by an App Service IP rule after deployment.

HTTPS Only requires encrypted transport but does not, by itself, set the minimum accepted TLS protocol version. This matters here because an approved Azure Front Door route is blocked by an App Service IP rule after deployment.

HTTPS Only requires encrypted transport but does not, by itself, set the minimum accepted TLS protocol version. This matters here because a web app must call Azure Key Vault without a password in app settings. Which identity technique fits.

Embedding the secret as a literal value in an app setting perpetuates static credential handling. A managed identity needs the appropriate secret data-plane authorization to access Key Vault without embedding credentials.

App Service manages supported application hosting and scaling features. A VM-hosted web server adds guest patching responsibilities. This matters here because a web app must call Azure Key Vault without a password in app settings. Which identity technique fits.

Automatic scaling can override manual counts according to configured profiles. The effective autoscale policy must align with the event plan. This matters here because a managed identity can request a token but Key Vault returns Forbidden. What is missing.

Key Vault references can resolve secrets into app configuration under supported identity and vault settings, avoiding plaintext storage. This matters here because a managed identity can request a token but Key Vault returns Forbidden. What is missing.

A correct secret URI is only one prerequisite. Key Vault references require authorized network reachability and identity permissions. This matters here because a managed identity can request a token but Key Vault returns Forbidden. What is missing.

Deployment slots separate release versions but do not keep every app worker loaded. Enable Always On on a supported App Service tier when idle unloading is the concern.

Health Check probes a configured endpoint and can mark unhealthy worker instances for exclusion in supported plans. This matters here because a platform team wants each App Service instance to remain loaded rather than unload during idle periods. Which….

Backup cadence does not send the regular warm-up requests that Always On provides. Enable Always On where supported by the hosting tier.

Autoscale changes instance counts under load but doesn't by itself stop idle processes from unloading. Check plan support and the Always On setting for persistent warm instances.

A certificate must match the requested host. A correct default endpoint certificate does not automatically cover a custom domain. This matters here because an app frequently cold-starts despite a correct DNS mapping and healthy TLS certificate. Which setting should be checked.

DNS and App Service hostname mapping work together. A DNS record alone does not authorize the platform to serve the hostname. This matters here because an app frequently cold-starts despite a correct DNS mapping and healthy TLS certificate. Which setting should be checked.

Private Resolver can forward selected domain queries to reachable DNS servers without self-managed DNS VMs. This matters here because a DNS team wants to publish a private application hostname resolvable only by VNets. Which DNS resource is appropriate.

Gateway-learned routes can appear in subnet effective routes under supported propagation and topology. A random public IP rule cannot establish private routing. This matters here because a DNS team wants to publish a private application hostname resolvable only by VNets. Which DNS resource is appropriate.

VNet peering connects private Azure address spaces without routing through public internet endpoints. NSG and UDR conditions still apply. This matters here because a DNS team wants to publish a private application hostname resolvable only by VNets. Which DNS resource is appropriate.

Subnet partitioning does not link a Private DNS zone to another network. Inspect zone virtual-network links or resolver forwarding on the clients' DNS path.

Ruleset association determines which VNets use the forwarding configuration. Correct rules in an unlinked ruleset cannot affect clients. This matters here because vMs in one VNet resolve a private host but machines in a second VNet cannot.

Private Resolver can forward selected domain queries to reachable DNS servers without self-managed DNS VMs. This matters here because vMs in one VNet resolve a private host but machines in a second VNet cannot.

A static Standard public IP can provide an allocated endpoint address under supported attachment and availability constraints. This matters here because a network owner needs to prevent accidental overlap when adding peered network address spaces. Which planning step….

Peering connections may need synchronization after address changes. A new address prefix must be represented in the reachable topology. This matters here because a network owner needs to prevent accidental overlap when adding peered network address spaces. Which planning step….

Global peering connects VNets in different regions over Microsoft's backbone. Costs and special limitations must be reviewed. This matters here because a network owner needs to prevent accidental overlap when adding peered network address spaces. Which planning step….

Ordinary Azure VNet peering rejects overlapping parent CIDRs and does not provide automatic NAT. Readdress one network or design an explicit supported translation path.

Each one-bit prefix increase halves the address block, producing two equal /25 networks. Azure reserves several addresses in every subnet. This matters here because two networks each use 192.168.10.0/24 and a new peering plan needs both. What remediation is required.

Spoke-to-hub peering does not automatically create spoke-to-spoke transitive routing. A routing service or topology change is needed. This matters here because two networks each use 192.168.10.0/24 and a new peering plan needs both. What remediation is required.