Question 21 of 1,031
Describe Azure architecture and servicesmediumMultiple ChoiceObjective-mapped

AZ-900 Describe Azure architecture and services Practice Question

This AZ-900 practice question tests your understanding of describe azure architecture and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A software company develops a microservices application using Docker containers. The application consists of multiple services that need to be deployed, scaled, and managed together. The company wants to use Azure to orchestrate and manage these containers without provisioning or managing the underlying virtual machines. Which Azure service should they use?

Question 1mediummultiple choice
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Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Azure Kubernetes Service (AKS)

Azure Kubernetes Service (AKS) is the correct choice because it provides a fully managed Kubernetes orchestration platform that automates the deployment, scaling, and management of containerized microservices. AKS abstracts the underlying virtual machines, allowing the company to focus on application logic without provisioning or managing the VM infrastructure, which directly matches the requirement for orchestration without VM management.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Azure Container Instances

    Why it's wrong here

    Azure Container Instances (ACI) allows you to run individual containers directly without managing VMs, but it does not provide built-in orchestration, scaling, or management for multiple containers working together as a microservices application. It is best for simple, single-container tasks.

  • Azure Kubernetes Service (AKS)

    Why this is correct

    AKS is a managed Kubernetes service that provides full orchestration capabilities for deploying and managing containerized microservices. It abstracts the underlying infrastructure, including virtual machines, so you can focus on application deployment and scaling.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Azure App Service

    Why it's wrong here

    Azure App Service is a Platform as a Service (PaaS) offering for hosting web applications, RESTful APIs, and mobile backends. While it can run containerized web apps, it is not designed to orchestrate multiple microservices as a cohesive cluster. It lacks features like service discovery and pod scheduling required for distributed container orchestration.

  • Azure Batch

    Why it's wrong here

    Azure Batch is a job scheduling service for running large-scale parallel and high-performance computing workloads. It is not designed for managing containerized microservices and does not provide the orchestration primitives (like Kubernetes pods and services) needed for this scenario.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse Azure Container Instances (ACI) as a suitable orchestration tool because it runs containers quickly, but they overlook that ACI lacks the multi-service orchestration, service discovery, and scaling capabilities that Kubernetes (via AKS) provides for microservices applications.

Trap categories for this question

  • Scenario analysis trap

    Azure Batch is a job scheduling service for running large-scale parallel and high-performance computing workloads. It is not designed for managing containerized microservices and does not provide the orchestration primitives (like Kubernetes pods and services) needed for this scenario.

Detailed technical explanation

How to think about this question

Under the hood, AKS manages the Kubernetes control plane (including API server, etcd, and scheduler) as a managed service, while the worker nodes (VMs) are automatically provisioned and maintained by Azure. The company can deploy their microservices using Kubernetes manifests (YAML) that define Deployments, Services, and Ingress controllers, enabling automated load balancing, rolling updates, and self-healing. A real-world scenario: a company with 20 microservices can use AKS to scale each service independently based on CPU/memory metrics via the Horizontal Pod Autoscaler, without manually managing VMs or container placement.

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.

TExam Day Tips

  • 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.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-900 question test?

Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Azure Kubernetes Service (AKS) — Azure Kubernetes Service (AKS) is the correct choice because it provides a fully managed Kubernetes orchestration platform that automates the deployment, scaling, and management of containerized microservices. AKS abstracts the underlying virtual machines, allowing the company to focus on application logic without provisioning or managing the VM infrastructure, which directly matches the requirement for orchestration without VM management.

What should I do if I get this AZ-900 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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