Always On VPN is a client-side management design with specific tunnel and infrastructure requirements. However, the option would implement validate Azure-supported Always On VPN requirements and select compatible VPN gateway and client configuration; the scenario instead requires constrain client routing and enforce destination access with NSGs and identity-aware controls. The differentiating evidence is that the contractor can access the approved project service but an unauthorized sensitive subnet is blocked.

Client settings must match the endpoint, routes and auth mode configured on the gateway. However, the option would implement regenerate and distribute the appropriate Azure VPN client configuration profile after gateway changes; the scenario instead requires constrain client routing and enforce destination access with NSGs and identity-aware controls. The differentiating evidence is that the contractor can access the approved project service but an unauthorized sensitive subnet is blocked.

P2S gateway SKU limits and client tunnel health are distinct from account credential validity. However, the option would implement inspect P2S gateway capacity, tunnel counts and connection diagnostics before changing identity controls; the scenario instead requires constrain client routing and enforce destination access with NSGs and identity-aware controls. The differentiating evidence is that the contractor can access the approved project service but an unauthorized sensitive subnet is blocked.

Gateway SKU capacity and feature support determine whether a hybrid design can meet operational needs. However, the option would implement select a supported VPN gateway SKU meeting tunnel counts, throughput, BGP and resiliency requirements; the scenario instead requires configure a supported active-active VPN gateway deployment and two corresponding tunnel endpoints. The differentiating evidence is that a controlled single-tunnel interruption leaves the alternate tunnel carrying authorized network traffic.

Route-based and policy-based VPN designs have different peer capabilities and SKU support constraints. However, the option would implement choose a supported VPN gateway and policy-based configuration or upgrade the incompatible peer as needed; the scenario instead requires configure a supported active-active VPN gateway deployment and two corresponding tunnel endpoints. The differentiating evidence is that a controlled single-tunnel interruption leaves the alternate tunnel carrying authorized network traffic.

A healthy VPN tunnel cannot carry traffic to destinations not represented by routing information. However, the option would implement update local network gateway address spaces or validated BGP advertisements for the missing prefix; the scenario instead requires configure a supported active-active VPN gateway deployment and two corresponding tunnel endpoints. The differentiating evidence is that a controlled single-tunnel interruption leaves the alternate tunnel carrying authorized network traffic.

Front Door provides global entry and acceleration, while regional gateways retain local layer-7 capabilities. However, the option would implement place Front Door in front of appropriate regional origin gateways with correct host headers and probes; the scenario instead requires configure an appropriate lightweight unauthenticated Front Door origin health probe path. The differentiating evidence is that origin health remains stable and a controlled failure results in expected traffic diversion.

Public origins need defenses against clients bypassing edge WAF and delivery rules. However, the option would implement apply supported origin access restrictions using Front Door identification and approved security controls; the scenario instead requires configure an appropriate lightweight unauthenticated Front Door origin health probe path. The differentiating evidence is that origin health remains stable and a controlled failure results in expected traffic diversion.

Edge routing and security policies can restrict traffic patterns and backend selection in supported scenarios. However, the option would implement use supported Front Door rules and geographic filtering where appropriate, plus origin segregation; the scenario instead requires configure an appropriate lightweight unauthenticated Front Door origin health probe path. The differentiating evidence is that origin health remains stable and a controlled failure results in expected traffic diversion.

Microsoft peering is distinct from Azure private peering and has service-specific routing requirements. However, the option would implement configure Microsoft peering only for eligible services and with the required prefix authorization and route filters; the scenario instead requires design ExpressRoute redundancy across appropriate circuits, peering locations and VNet connections. The differentiating evidence is that a controlled primary-path outage retains a functional alternate route for the required workload.

Private peering is a BGP arrangement and cannot establish with inconsistent peer identifiers or IP addressing. However, the option would implement match ExpressRoute peering VLAN, ASN, BGP addressing and authorized session parameters; the scenario instead requires design ExpressRoute redundancy across appropriate circuits, peering locations and VNet connections. The differentiating evidence is that a controlled primary-path outage retains a functional alternate route for the required workload.

A private transport path is not inherently end-to-end payload encryption for compliance purposes. However, the option would implement add application-level TLS, IPsec over ExpressRoute, or supported MACsec on eligible Direct ports as appropriate; the scenario instead requires design ExpressRoute redundancy across appropriate circuits, peering locations and VNet connections. The differentiating evidence is that a controlled primary-path outage retains a functional alternate route for the required workload.

That observation would primarily validate another control: configure an explicit supported outbound strategy using NAT Gateway or load balancer outbound rules. High outbound connection concurrency needs sufficient SNAT ports and a deliberate egress configuration. The situation calls for evidence that after the TTL window, fresh queries resolve to the healthy selected endpoint and the standby service responds.

That observation would primarily validate another control: create inbound NAT rules that map unique frontend ports to designated backend endpoints. Inbound NAT rules target specific backend machines instead of spreading a flow across a load-balanced pool. The situation calls for evidence that after the TTL window, fresh queries resolve to the healthy selected endpoint and the standby service responds.

That observation would primarily validate another control: configure suitable load-balancing rules including HA ports where the chosen internal design supports them. Load-balancing rules map frontend flows to backend endpoints; HA ports can address multiple ports in eligible designs. The situation calls for evidence that after the TTL window, fresh queries resolve to the healthy selected endpoint and the standby service responds.

That observation would primarily validate another control: use individual approved private endpoint connections and enforce data-plane identity authorization. DNS visibility is not resource authorization; Private Link approval and service-level permissions are separate. The situation calls for evidence that an approved consumer endpoint reaches the service while an unapproved connection remains denied.

That observation would primarily validate another control: review and configure supported private endpoint network policies and the associated subnet routes deliberately. Private endpoint policy support and traffic paths must be consistent with the desired inspection/segmentation design. The situation calls for evidence that an approved consumer endpoint reaches the service while an unapproved connection remains denied.

That observation would primarily validate another control: create an Azure private endpoint for the supported PaaS resource and use the proper private DNS configuration. Private endpoints map a supported PaaS service into a VNet through a private network interface. The situation calls for evidence that an approved consumer endpoint reaches the service while an unapproved connection remains denied.

That observation would primarily validate another control: validate DNS resolution separately from IP routing and provide an approved private network path. Correct name resolution does not create connectivity; routing, firewall and endpoint access still matter. The situation calls for evidence that internal clients receive approved private records while external public clients see only intended public records.

That observation would primarily validate another control: separate the private DNS resolution scopes using environment-specific zones and deliberate VNet links. Name resolution visibility is determined by private-zone linking and namespace selection. The situation calls for evidence that internal clients receive approved private records while external public clients see only intended public records.

That observation would primarily validate another control: refresh affected VM DHCP leases or restart network interfaces after changing VNet DNS server settings. Existing workloads may retain DNS settings obtained before a VNet-level resolver change. The situation calls for evidence that internal clients receive approved private records while external public clients see only intended public records.

Effective NSG evaluation identifies the allow or deny rule governing a specific flow. However, the option would implement use Network Watcher IP flow verify or effective security rules for the exact source/destination tuple; the scenario instead requires enable supported VNet flow logs with the intended storage and analysis configuration. The differentiating evidence is that flow records capture approved test connections and can be queried in the selected analysis destination.

Cloud Security Explorer helps correlate resource attributes and security relationships at inventory scale. However, the option would implement use Defender for Cloud Cloud Security Explorer to query related security posture resources; the scenario instead requires enable supported VNet flow logs with the intended storage and analysis configuration. The differentiating evidence is that flow records capture approved test connections and can be queried in the selected analysis destination.

Aggregated network views connect resource health and relevant network signals for operations analysis. However, the option would implement use Azure Monitor for Networks and relevant Network Watcher metrics to correlate network health trends; the scenario instead requires enable supported VNet flow logs with the intended storage and analysis configuration. The differentiating evidence is that flow records capture approved test connections and can be queried in the selected analysis destination.

NAT Gateway is the managed subnet-level SNAT option for predictable outbound public IPs without inbound publishing. However, the option would implement attach Azure NAT Gateway with sufficient public IP capacity to the relevant outbound subnet; the scenario instead requires enable appropriate forwarded traffic settings on the relevant peering connections and retain correct return routes. The differentiating evidence is that cross-spoke traffic is forwarded through the appliance with matching request and return packets.

Stateful firewalls need consistent bidirectional session visibility or supported asymmetric-flow handling. However, the option would implement validate symmetric request and return routes through the stateful inspection appliance; the scenario instead requires enable appropriate forwarded traffic settings on the relevant peering connections and retain correct return routes. The differentiating evidence is that cross-spoke traffic is forwarded through the appliance with matching request and return packets.

User-defined routes direct selected prefixes through a network virtual appliance when transparent inspection is required. However, the option would implement associate a route table with a UDR pointing the intended destination prefix to the virtual appliance next hop; the scenario instead requires enable appropriate forwarded traffic settings on the relevant peering connections and retain correct return routes. The differentiating evidence is that cross-spoke traffic is forwarded through the appliance with matching request and return packets.

That observation would primarily validate another control: add a supported IPv6 address space and configure dual-stack subnets and compatible resource front ends. IPv6 reachability requires explicit address space, subnet and resource support, not a public DNS AAAA record alone. The situation calls for evidence that test packets follow the correct subnet route and the intended allow or deny decision is recorded.

That observation would primarily validate another control: choose the service-supported delegated subnet and remove incompatible delegation or workload placements. Subnet delegation is scoped to supported service providers and imposes placement constraints. The situation calls for evidence that test packets follow the correct subnet route and the intended allow or deny decision is recorded.

That observation would primarily validate another control: create an expandable CIDR and subnet capacity plan that reserves room for gateway and security services. Gateway, Bastion, Firewall, private endpoint and application delivery components require space and specific subnet planning. The situation calls for evidence that test packets follow the correct subnet route and the intended allow or deny decision is recorded.

That observation would primarily validate another control: define deliberate WAF enforcement responsibilities and correlate diagnostic rules across edge and regional layers. Two WAF enforcement points can both inspect requests; policy coordination reduces conflicting false positives. The situation calls for evidence that the legitimate header passes and a representative attack in unrelated fields remains detected.

That observation would primarily validate another control: apply a narrowly scoped WAF exclusion or supported per-rule override instead of disabling all protection. Targeted tuning preserves the broader managed rule set while addressing a justified false positive. The situation calls for evidence that the legitimate header passes and a representative attack in unrelated fields remains detected.

That observation would primarily validate another control: start the WAF in detection mode, review matched rules and then enable prevention after tuning. Detection mode logs rule matches without blocking requests, supporting controlled policy tuning. The situation calls for evidence that the legitimate header passes and a representative attack in unrelated fields remains detected.