Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company deploys a web application on Azure Virtual Machines across multiple availability zones within a single region. They need to distribute incoming network traffic across these VM instances to ensure high availability. Which Azure service should they 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
Best answer
Azure Load Balancer
Correct. Azure Load Balancer distributes inbound traffic at the transport layer (TCP/UDP) to healthy VM instances, supporting availability zones within a region.
B
Distractor review
Azure Application Gateway
Incorrect. Application Gateway is a Layer 7 load balancer for HTTP/S traffic and includes web application firewall features, but is not the simplest choice for basic traffic distribution across zones.
C
Distractor review
Azure Traffic Manager
Incorrect. Traffic Manager is a DNS-based traffic router that directs traffic across regions, not within a single region.
D
Distractor review
Azure Front Door
Incorrect. Front Door is a global load balancer and web application firewall that optimizes traffic across regions, not suitable for intra-region distribution.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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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?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Azure Load Balancer — Azure Load Balancer (Standard SKU) operates at Layer 4 and can distribute traffic across VMs in the same region, including across availability zones. Azure Application Gateway is a Layer 7 load balancer focused on HTTP/S traffic with routing features. Azure Traffic Manager provides global DNS-based load balancing across regions. Azure Front Door is a global, scalable entry point with acceleration. For distributing traffic within a region across zones, Azure Load Balancer is the appropriate service.
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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