Question 420
A regional service fails but some users keep reaching it until cached DNS answers expire despite Traffic Manager reporting a healthy alternate. A network engineer demands TLS termination and WAF inspection directly on a Traffic Manager DNS profile. Which response best addresses these needs?
- Use a supported web delivery layer such as Front Door or Application Gateway for TLS and WAF inspection; do not review DNS caching and TTL behavior and design client retry expectations for Traffic Manager failover.
- Review DNS caching and TTL behavior and design client retry expectations for Traffic Manager failover; configure Azure Traffic Manager with an appropriate traffic-routing method and endpoint monitoring.
- Review DNS caching and TTL behavior and design client retry expectations for Traffic Manager failover; use a supported web delivery layer such as Front Door or Application Gateway for TLS and WAF inspection.
- Use Traffic Manager weighted routing with monitored endpoints and validate the resulting DNS responses; use a supported web delivery layer such as Front Door or Application Gateway for TLS and WAF inspection.
Explanation
Correct Answer
C:DNS-based failover cannot immediately replace a connection that relies on an already cached address. A DNS traffic manager does not terminate HTTP/TLS connections or inspect request payloads. Both actions are needed.
Incorrect Answers
A:This plan leaves out a required action: Review DNS caching and TTL behavior and design client retry expectations for Traffic Manager failover. The remaining action alone does not satisfy the situation.
B:A DNS traffic manager does not terminate HTTP/TLS connections or inspect request payloads.
D:DNS-based failover cannot immediately replace a connection that relies on an already cached address.
Question 421
A worldwide retail site needs Microsoft edge-based HTTP routing, TLS termination, caching, and automatic origin health failover. A site requires an edge rule that redirects HTTP to HTTPS and rewrites selected URL prefixes without application code changes. What is the most appropriate plan for this situation?
- Adjust Front Door caching behavior and implement a controlled purge or cache-bypass path for freshness-sensitive responses; configure Front Door rules sets and route options to apply the approved redirects and URL rewrites.
- Configure Front Door rules sets and route options to apply the approved redirects and URL rewrites; do not deploy an appropriate Azure Front Door profile with routes, origin groups, endpoints, and health probes.
- Deploy an appropriate Azure Front Door profile with routes, origin groups, endpoints, and health probes; configure Front Door origin groups and routes with appropriate priority and latency-based traffic distribution.
- Deploy an appropriate Azure Front Door profile with routes, origin groups, endpoints, and health probes; configure Front Door rules sets and route options to apply the approved redirects and URL rewrites.
Explanation
Correct Answer
D:Front Door provides global layer-7 ingress and origin routing rather than only regional private load balancing. Front Door can apply supported request-routing transformations at the global entry point. Both actions are needed.
Incorrect Answers
A:Front Door provides global layer-7 ingress and origin routing rather than only regional private load balancing.
B:This plan leaves out a required action: Deploy an appropriate Azure Front Door profile with routes, origin groups, endpoints, and health probes. The remaining action alone does not satisfy the situation.
C:Front Door can apply supported request-routing transformations at the global entry point.
Question 422
An operations team treats a service tag as a permanent list of Azure public CIDRs and manually pins stale values in every NSG. What should the Azure network engineer do?
- Investigate subnet IP assignments and available CIDR capacity independently from DNS resolver configuration.
- Check supported global or cross-region load-balancing constructs and separate regional address identities where required.
- Use supported service tags where appropriate and review service scope instead of freezing changing platform address lists.
- Resolve the address overlap before deploying peering and hybrid route advertisements into the same connectivity topology.
Explanation
Correct Answer
C:Service tags abstract approved platform prefixes and reduce configuration drift from evolving Azure address ranges.
Incorrect Answers
A:For this finding, service tags abstract approved platform prefixes and reduce configuration drift from evolving Azure address ranges.
B:Checking supported global or cross-region load-balancing constructs and separating regional address identities where required would not meet the need for supported service tags where appropriate and review service scope.
D:Resolving the address overlap would not meet the need for supported service tags where appropriate and review service scope.
Question 423
An organization orders high-capacity dedicated ExpressRoute connectivity that requires paired physical links and direct Microsoft edge port management. An ExpressRoute design relies on one circuit and one metro location despite requiring continuity during provider-level outages. Which response best addresses these needs?
- Evaluate ExpressRoute Direct with supported locations, port capacity, and operational requirements; add diverse eligible circuits and routing failover options across independent connectivity locations.
- Add diverse eligible circuits and routing failover options across independent connectivity locations; do not evaluate ExpressRoute Direct with supported locations, port capacity, and operational requirements.
- Evaluate ExpressRoute Direct with supported locations, port capacity, and operational requirements; evaluate ExpressRoute Global Reach between eligible circuits and validate location and provider support.
- Evaluate ExpressRoute FastPath prerequisites and verify which traffic paths the selected gateway and routes support; add diverse eligible circuits and routing failover options across independent connectivity locations.
Explanation
Correct Answer
A:ExpressRoute Direct exposes dedicated port arrangements beyond a standard provider-managed circuit. Physical provider and peering diversity address failures that redundant gateway instances on one circuit cannot. Both actions are needed.
Incorrect Answers
B:This plan leaves out a required action: Evaluate ExpressRoute Direct with supported locations, port capacity, and operational requirements. The remaining action alone does not satisfy the situation.
C:Physical provider and peering diversity address failures that redundant gateway instances on one circuit cannot.
D:ExpressRoute Direct exposes dedicated port arrangements beyond a standard provider-managed circuit.
Question 424
During an Azure networking rollout, the team must resolve both of these conditions. An organization acquires a partner whose 10.20.0.0/16 network overlaps a planned Azure hub, making peering routes ambiguous. An engineering VNet has a /24 address space but must add separate application, private endpoint, gateway, and firewall subnets next quarter. What is the most appropriate plan for this situation?
- Redesign the Azure address plan using nonoverlapping prefixes and coordinate any required network translation before connecting the environments; Expand or redesign the VNet address space and reserve appropriately sized nonoverlapping subnets before deploying new services.
- Expand or redesign the VNet address space and reserve appropriately sized nonoverlapping subnets before deploying new services; do not Redesign the Azure address plan using nonoverlapping prefixes and coordinate any required network translation before connecting the environments.
- Redesign the Azure address plan using nonoverlapping prefixes and coordinate any required network translation before connecting the environments; provision a dedicated GatewaySubnet with the required size and attach the virtual network gateway to that supported subnet.
- Configure the service's supported subnet delegation and check whether other intended resources can share that subnet; Expand or redesign the VNet address space and reserve appropriately sized nonoverlapping subnets before deploying new services.
Explanation
Correct Answer
A:Peering and VPN routing cannot disambiguate overlapping private destinations without a deliberate addressing or translation plan. Subnet capacity and reserved addresses must be planned for service-specific requirements rather than consumed opportunistically. Both actions are needed.
Incorrect Answers
B:This plan leaves out a required action: Redesign the Azure address plan using nonoverlapping prefixes and coordinate any required network translation before connecting the environments. The remaining action alone does not satisfy the situation.
C:Subnet capacity and reserved addresses must be planned for service-specific requirements rather than consumed opportunistically.
D:Peering and VPN routing cannot disambiguate overlapping private destinations without a deliberate addressing or translation plan.
Question 425
During an Azure networking rollout, the team must resolve both of these conditions. A team wants end-to-end connection affinity for a stateful checkout service but uses an origin that stores carts only in local process memory. A regional Application Gateway deployment includes several separate backends but fails requests after a subnet routing change inserts an unsupported forced tunnel. Which course of action addresses the stated issues?
- Configure supported cookie-based affinity where suitable and redesign session state for failover resilience; use supported multi-site HTTPS listeners and server name indication with valid certificates for each authorized hostname.
- Verify the supported Application Gateway frontend and backend protocol capabilities and match the origin application configuration; validate Application Gateway subnet and routing restrictions and repair the effective required control-plane and backend paths.
- Configure supported cookie-based affinity where suitable and redesign session state for failover resilience; validate Application Gateway subnet and routing restrictions and repair the effective required control-plane and backend paths.
- Validate Application Gateway subnet and routing restrictions and repair the effective required control-plane and backend paths; do not configure supported cookie-based affinity where suitable and redesign session state for failover resilience.
Explanation
Correct Answer
C:Sticky routing can reduce session churn but cannot protect application sessions when a single backend permanently fails. An Application Gateway still depends on documented networking prerequisites, including compatible routing through its subnet. Both actions are needed.
Incorrect Answers
A:An Application Gateway still depends on documented networking prerequisites, including compatible routing through its subnet.
B:Sticky routing can reduce session churn but cannot protect application sessions when a single backend permanently fails.
D:This plan leaves out a required action: Configure supported cookie-based affinity where suitable and redesign session state for failover resilience. The remaining action alone does not satisfy the situation.
Question 426
An application migrates from a legacy backend host name and now receives 502 responses because its certificate does not match the host selected by the gateway. A gateway must add an X-Forwarded custom header for upstream application diagnostics without changing application binaries. Which response best addresses these needs?
- Configure a supported Application Gateway rewrite rule set and verify the forwarded request headers; do not correct backend hostname and trusted certificate settings and retest the Application Gateway health probe.
- Correct backend hostname and trusted certificate settings and retest the Application Gateway health probe; configure HTTPS backend settings with appropriate certificate trust and end-to-end TLS validation.
- Review listener and rule priorities and verify path-match precedence before committing the correction; configure a supported Application Gateway rewrite rule set and verify the forwarded request headers.
- Correct backend hostname and trusted certificate settings and retest the Application Gateway health probe; configure a supported Application Gateway rewrite rule set and verify the forwarded request headers.
Explanation
Correct Answer
D:Backend TLS validation depends on the expected name and chain, not just a responding TCP port. Gateway rewrite rules modify eligible HTTP metadata without requiring changes to every backend service. Both actions are needed.
Incorrect Answers
A:This plan leaves out a required action: Correct backend hostname and trusted certificate settings and retest the Application Gateway health probe. The remaining action alone does not satisfy the situation.
B:Gateway rewrite rules modify eligible HTTP metadata without requiring changes to every backend service.
C:Backend TLS validation depends on the expected name and chain, not just a responding TCP port.
Question 427
An ExpressRoute circuit is provisioned but a spoke VNet still has no on-premises reachability because no gateway connection exists. A circuit's provider reports ready, but BGP sessions do not establish because the configured peer ASN and VLAN values disagree. What is the most appropriate plan for this situation?
- Align the provider handoff, BGP peer IPs, ASN, VLAN ID, and Microsoft peering configuration; do not create a supported ExpressRoute virtual network gateway and link the VNet to the provisioned circuit.
- Create a supported ExpressRoute virtual network gateway and link the VNet to the provisioned circuit; align the provider handoff, BGP peer IPs, ASN, VLAN ID, and Microsoft peering configuration.
- Configure Azure private peering and the applicable VNet gateway or direct connectivity model; align the provider handoff, BGP peer IPs, ASN, VLAN ID, and Microsoft peering configuration.
- Create a supported ExpressRoute virtual network gateway and link the VNet to the provisioned circuit; design an ExpressRoute circuit with an eligible connectivity provider and appropriate peering and gateway configuration.
Explanation
Correct Answer
B:Provisioning the circuit itself does not automatically connect a VNet's routing domain to the private peering. ExpressRoute service provisioning and route exchange are separate milestones with strict peering parameters. Both actions are needed.
Incorrect Answers
A:This plan leaves out a required action: Create a supported ExpressRoute virtual network gateway and link the VNet to the provisioned circuit. The remaining action alone does not satisfy the situation.
C:Provisioning the circuit itself does not automatically connect a VNet's routing domain to the private peering.
D:ExpressRoute service provisioning and route exchange are separate milestones with strict peering parameters.
Question 428
Multiple Azure Firewalls should share a baseline threat and network rule policy while allowing one region's justified exceptions. A team requires advanced threat protection, URL filtering and supported TLS inspection but selects Azure Firewall Basic for the production design. An Azure Firewall deployment has apparently correct allow rules, but spokes bypass its IP because their UDRs still point to the internet. Which course of action addresses the stated issues?
- Use Azure Firewall Policy hierarchy and appropriately scoped child policies with validation of rule collection priorities; deploy a supported Azure Firewall secured virtual hub configuration and verify Virtual WAN routing intent and connections; and update and associate approved route tables or secured hub routing intent and confirm packets traverse the firewall.
- Use Azure Firewall Policy hierarchy and appropriately scoped child policies with validation of rule collection priorities; select an appropriate Azure Firewall Premium tier after validating required advanced security features; and update and associate approved route tables or secured hub routing intent and confirm packets traverse the firewall.
- Deploy a supported Azure Firewall secured virtual hub configuration and verify Virtual WAN routing intent and connections; select an appropriate Azure Firewall Premium tier after validating required advanced security features; and update and associate approved route tables or secured hub routing intent and confirm packets traverse the firewall.
- Use Azure Firewall Policy hierarchy and appropriately scoped child policies with validation of rule collection priorities; select an appropriate Azure Firewall Premium tier after validating required advanced security features; and deploy a supported Azure Firewall secured virtual hub configuration and verify Virtual WAN routing intent and connections.
Explanation
Correct Answer
B:Central policy inheritance can standardize controls without copying every rule by hand into each firewall. Azure Firewall SKUs differ in supported advanced inspection and security capabilities. A correctly configured firewall cannot inspect traffic that never traverses its private data-path endpoint. Each decision addresses a separate requirement.
Incorrect Answers
A:Two actions meet their requirements, but action 2 misses this need: azure Firewall SKUs differ in supported advanced inspection and security capabilities.
C:Two actions meet their requirements, but action 1 misses this need: central policy inheritance can standardize controls without copying every rule by hand into each firewall.
D:Two actions meet their requirements, but action 3 misses this need: a correctly configured firewall cannot inspect traffic that never traverses its private data-path endpoint.
Question 429
An administrator creates a deny rule at priority 400 but a broader allow at priority 200 still admits the traffic. A security engineer attaches a restrictive NSG to a VM NIC but forgets an additional subnet NSG is also applied and traffic remains blocked. Which response best addresses these needs?
- Use supported Application Security Groups for member NICs and reference those groups in appropriate NSG rules; check effective NSG rules across subnet and NIC scopes before changing unrelated Azure Firewall policies.
- Reorder or narrow the higher-priority matching NSG rule and validate the effective security evaluation; create a narrowly scoped inbound NSG rule with the specific source, destination, protocol, port, and appropriate priority.
- Check effective NSG rules across subnet and NIC scopes before changing unrelated Azure Firewall policies; do not Reorder or narrow the higher-priority matching NSG rule and validate the effective security evaluation.
- Reorder or narrow the higher-priority matching NSG rule and validate the effective security evaluation; check effective NSG rules across subnet and NIC scopes before changing unrelated Azure Firewall policies.
Explanation
Correct Answer
D:Lower numerical priority values are processed first, so an earlier matching allow can shadow a later deny. Subnet and NIC security rules can both affect traffic; one permissive policy does not override a deny elsewhere. Both actions are needed.
Incorrect Answers
A:Lower numerical priority values are processed first, so an earlier matching allow can shadow a later deny.
B:Subnet and NIC security rules can both affect traffic; one permissive policy does not override a deny elsewhere.
C:This plan leaves out a required action: Reorder or narrow the higher-priority matching NSG rule and validate the effective security evaluation. The remaining action alone does not satisfy the situation.
Question 430
An administrator expects Application Gateway to provide raw RDP load balancing for remote administrators rather than web traffic. Which response most directly resolves the issue?
- Use a supported layer-4 load balancer, Azure Bastion, or access method matched to the management protocol.
- Update backend pool membership and probe configuration and verify traffic distribution from client requests.
- Set the backend HTTP port and probe destination correctly rather than changing the public HTTPS listener.
- Configure probes with the intended host header and path and validate the origin's virtual host behavior.
Explanation
Correct Answer
A:Application Gateway focuses on HTTP(S) services and does not expose generic TCP connections like an L4 balancer.
Incorrect Answers
B:Updating backend pool membership and probe configuration and verifying traffic distribution from client requests would not meet the need for load balancing.
C:For this finding, application Gateway focuses on HTTP(S) services and does not expose generic TCP connections like an L4 balancer.
D:Configuring probes with the intended host header and path and validating the origin's virtual host behavior would not meet the need for load balancing.
Designing and Implementing Microsoft Azure Networking Solutions (AZ-700) Practice Tests