AZ-104 Deploy and Manage Azure Compute Practice Question

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 this is correct

  Azure Container Instances is well suited for short-lived, isolated container runs without cluster management. It lets the team start a container on demand, run the job, and stop paying for a continuously running server once the task is complete. For scheduled or event-driven container workloads that do not need orchestration features, it is a simple and practical choice.

• ✗

  Azure Kubernetes Service

  Why it's wrong here

  AKS is a managed Kubernetes cluster that brings its own control plane, node pools, and networking, which must be provisioned, secured, and scaled even if you only launch one batch container. For a single 10-15 minute task, the cluster's minimum node VM footprint and operational overhead are unnecessary. A Kubernetes Job could technically run the container, but the team would still need a functioning AKS cluster to accept the workload, making it far more complex than a direct ACI invocation.

  When this WOULD be correct

  A question requiring orchestration of multiple containers, scaling, rolling updates, or high availability for a production application would make AKS correct. For example: 'A company needs to deploy a microservices application with auto-scaling and self-healing capabilities, and the team wants to minimize operational overhead for cluster management.'

• ✗

  Azure Virtual Machine

  Why it's wrong here

  A VM requires full OS lifecycle management: provisioning disks, applying security updates, and handling shutdown, all for a job that finishes in minutes. The VM's underlying capacity is reserved continuously, so you pay for idle compute after the container exits unless you automate deallocation. In addition, running Docker inside a VM adds a layer of indirection compared with a dedicated container service, and the VM boot time adds unnecessary latency to a short-lived pipeline task.

  When this WOULD be correct

  A question requiring a persistent, customizable environment with full OS control, such as running a legacy application that needs specific OS configurations or installing custom software that cannot be containerized.

• ✗

  Azure App Service

  Why it's wrong here

  Azure App Service is a platform-as-a-service built for continuously running web applications and APIs; its container support expects a listener on an exposed HTTP endpoint for routing and liveness checks. A job that executes for 15 minutes and then exits would violate the App Service runtime model because the platform assumes the process remains alive. It also requires an App Service plan with an always-on setting and offers no 'run once and stop' billing, so it is a poor fit for this non-HTTP, short-lived workload.

  When this WOULD be correct

  A question asks: 'Which Azure service should be used to host a web application that requires automatic scaling, high availability, and supports both Windows and Linux environments, without managing the underlying infrastructure?' In that scenario, Azure App Service is the correct answer.

Option-by-option analysis

Why each answer is right or wrong

Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.

Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”

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