Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A global e-commerce company has web applications deployed on Azure virtual machines in the West US and West Europe regions. The company needs a single, global HTTP-based entry point that can perform SSL offloading, route requests based on the URL path (e.g., /api to one backend pool, /images to another), and provide a web application firewall (WAF) to protect against common web attacks. Additionally, the solution must automatically direct users to the closest regional deployment to minimize latency. Which Azure service should the company use?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
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Azure Traffic Manager
Azure Traffic Manager is a DNS-based traffic router that directs traffic at the domain level based on routing methods like performance or geographic. It does not inspect HTTP traffic, cannot offload SSL, route based on URL paths, or provide a web application firewall. Therefore, it does not meet the HTTP-level requirements.
B
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Azure Application Gateway
Azure Application Gateway is a regional Layer 7 load balancer that offers SSL termination, URL-path routing, and WAF. However, it is deployed within a single region and cannot route requests globally or automatically direct users to the closest regional deployment. A separate Application Gateway instance would be needed in each region, which does not provide a single global endpoint.
C
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Azure Load Balancer
Azure Load Balancer operates at Layer 4 (TCP/UDP) and distributes traffic solely based on network-level properties. It cannot inspect HTTP headers, perform URL-path routing, offload SSL, or provide WAF capabilities. It is also a regional service, not global.
D
Best answer
Azure Front Door
Azure Front Door is a global HTTP(S) load balancer that provides SSL offloading, path-based routing, WAF integration, and intelligent traffic routing to the closest available regional backend. It meets all the specified requirements in a single global service.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer is building a serverless application that requires integration with an on-premises SQL Server database for real-time data processing. The on-premises network is connected to Azure via a site-to-site VPN. Which Azure service would allow the function to securely access the on-premises database without exposing it to the public internet?
Question 2
A solutions architect is designing a storage solution for a large media company. The company needs to store video files that are accessed infrequently but must be retained for several years for compliance. Which two Azure storage options meet these requirements? (Select two.)
Question 3
A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?
Question 4
A company wants to enforce a set of security policies across all their Azure subscriptions. They have created several individual policy definitions. Which Azure construct should they use to group these policies together and assign them as a single package?
Question 5
A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?
Question 6
A company develops a web API that runs on Azure App Service. The development team wants to deploy a new version of the API to a staging environment, run integration tests against it, and then gradually shift production traffic to the new version. If any issues are detected, they want to immediately roll back to the previous version without redeploying. Which Azure App Service feature should the team use to meet these requirements?
FAQ
Questions learners often ask
What does this AZ-900 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure Front Door — Azure Front Door is a global HTTP(S) load-balancing service that operates at Layer 7. It provides SSL termination, URL-path-based routing, web application firewall (WAF), and acceleration by routing users to the nearest available regional backend. This matches all the requirements in the scenario. Azure Traffic Manager works at the DNS level and does not offer HTTP-level features like path-based routing or SSL offloading. Azure Application Gateway is a regional Layer 7 load balancer that does support those features but is not global; it would require separate instances in each region. Azure Load Balancer operates at Layer 4 (TCP/UDP) and does not understand HTTP paths or provide WAF capabilities.
What should I do if I get this AZ-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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