AZ-104 Deploy and Manage Azure Compute Practice Test 6 — 15 Questions

Question 1

A developer wants to publish an internet-facing application from source code. Required capabilities include built-in HTTPS, deployment slots, and autoscale, but the team does not want to manage the operating system. Which Azure service should the administrator choose?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Azure App Service. Azure App Service is the correct choice because it provides a fully managed platform for hosting web applications with built-in HTTPS support, deployment slots for staging and swapping, and autoscale capabilities. It abstracts the underlying operating system, allowing the team to focus on code without managing infrastructure.

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Azure Container Instances

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Azure Virtual Machines

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Azure Kubernetes Service

Question 2

A stateless API must automatically add or remove identical VM instances when CPU usage crosses thresholds. The team also wants Microsoft to distribute instances across fault domains when possible. Which service should the administrator deploy?

Accepted Answer

A virtual machine scale set. A virtual machine scale set (VMSS) is the correct choice because it provides built-in autoscaling capabilities that automatically add or remove identical VM instances based on CPU usage thresholds. VMSS also supports automatic distribution of instances across fault domains when configured with a fault domain count greater than 1, meeting the requirement for Microsoft to distribute instances across fault domains.

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An availability set

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Azure Load Balancer

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Azure App Service

Question 3

A build pipeline starts a Linux container once per request. Each run lasts about 12 minutes, never needs inbound connections, and should not leave an always-on server running afterward. Which two configuration choices best fit Azure Container Instances? Select two.

Accepted Answer

Use Azure Container Instances for the workload.. Azure Container Instances (ACI) is the correct choice because it is a serverless container platform that starts containers on demand, runs them for the duration of the workload (here ~12 minutes), and automatically stops and deallocates resources when the container exits. It requires no always-on infrastructure, supports Linux containers, and does not need inbound connections, making it ideal for ephemeral build pipeline tasks.

Answer

Create an App Service plan with deployment slots.

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Use a virtual machine scale set to host the container.

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Place the workload in an availability set for host protection.

Question 4

A stateless API runs on Azure VMs and experiences unpredictable traffic spikes during the day. The administrator must automatically add or remove identical VM instances based on CPU usage, and the platform should distribute instances across fault domains without manual placement. What should be used?

Accepted Answer

Virtual machine scale set. Virtual machine scale sets (VMSS) automatically manage identical VM instances and can scale out/in based on CPU usage metrics via autoscale rules. They distribute instances across fault domains automatically without manual placement, ensuring high availability during unpredictable traffic spikes.

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Availability set

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Availability zone

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Proximity placement group

Question 5

A stateless application must keep serving traffic if one datacenter in the region fails, and it must also add or remove instances during daily load spikes. Which two deployment choices should the administrator make? Select two.

Accepted Answer

Deploy the application on a virtual machine scale set.. A virtual machine scale set (VMSS) allows automatic scaling of instances in response to load spikes, meeting the requirement to add or remove instances dynamically. Combined with availability zones, which distribute instances across physically separate datacenters within a region, the application remains available even if one entire datacenter fails. This pair ensures both high availability and elastic scaling for a stateless application.

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Use a single availability set with one VM to reduce complexity.

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Use a proximity placement group for the workload.

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Deploy one larger VM with a premium SSD instead of multiple instances.

Question 6

One team needs to run a Linux container for about 15 minutes per request with no inbound traffic and no cluster to manage. Another team needs an internet-facing web app with built-in HTTPS, deployment slots, and autoscale. Which two Azure services should the administrator choose? Select two.

Accepted Answer

Azure Container Instances. Azure Container Instances (ACI) is the correct choice for the first team because it allows running a Linux container directly on Azure without managing any underlying infrastructure or cluster, and it supports a 15-minute execution time with no inbound traffic required. ACI is ideal for burstable, short-lived container workloads that do not need orchestration.

Answer

Azure Virtual Machines

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Azure Kubernetes Service

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Azure Batch

Question 7

A public web application runs on two identical VMs behind a load balancer. The region supports availability zones. The business wants the app to keep serving traffic if one datacenter in the region becomes unavailable. What should the administrator use?

Accepted Answer

Availability zones for the two VMs. Deploying the two VMs in different availability zones within the same region protects against a single datacenter failure. Each availability zone is a physically separate datacenter with independent power, cooling, and networking. If one zone goes down, the load balancer automatically routes traffic to the VM in the other zone, ensuring the application continues serving traffic.

Answer

An availability set with two VMs

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A single virtual machine scale set instance

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A proximity placement group

Question 8

A Windows VM must automatically run a setup script after provisioning to install an agent, create a folder, and write configuration files. The administrator wants the script to be delivered through Azure management and run without a human signing in. What should be used?

Accepted Answer

Custom Script Extension. The Custom Script Extension (CSE) is the correct Azure feature to automatically run a setup script on a Windows VM after provisioning. It downloads and executes scripts from Azure Storage or GitHub, runs as the local system account, and requires no user sign-in, making it ideal for post-deployment configuration like installing agents and writing files.

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Availability set

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Azure Load Balancer

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Route table

Question 9

A Windows VM needs a one-time command run immediately after deployment, and a second VM must automatically install an agent and copy configuration files during provisioning. Which two Azure compute features should the administrator use? Select two.

Accepted Answer

Run Command. Run Command (A) is correct because it allows a one-time command to be executed immediately on a Windows VM after deployment, without requiring any agent or extension. Custom Script Extension (B) is correct because it enables automated installation of an agent and copying of configuration files during VM provisioning by running a script (e.g., PowerShell or Bash) as part of the deployment process.

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Azure Monitor agent

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Azure Policy assignment

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Azure Bastion

Question 10

A developer wants to keep application data separate from the operating system so the VM can be rebuilt without losing files. Before making a risky change, the administrator also wants a fast rollback point for that data disk. Which two actions should the administrator take? Select two.

Accepted Answer

Store the application data on a separate managed data disk. Storing application data on a separate managed data disk decouples the data from the OS disk. This allows the VM to be rebuilt or reimaged without affecting the application files, as the data disk persists independently. Option B is correct because a snapshot of the data disk provides a point-in-time, crash-consistent backup that can be used to quickly restore the data disk to its pre-change state, enabling fast rollback without needing to rebuild the entire VM.

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Use an ephemeral OS disk for the application files

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Keep the files only on the OS disk and rely on reimaging

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Delete and recreate the VM from the same image

Question 11

A team needs to run a Linux container for 15 to 20 minutes at a time, triggered by an external system. They do not want to manage servers, clusters, or a web framework. Which Azure service is the best fit?

Accepted Answer

Azure Container Instances. Azure Container Instances (ACI) is the best fit because it allows you to run a container directly in Azure without managing any underlying servers or orchestrators. The service is designed for short-lived, burst workloads (like 15–20 minutes) and can be triggered on-demand via an external system (e.g., HTTP request, Azure Logic Apps, or SDK). ACI automatically starts the container, runs it, and then stops and deallocates resources when the task completes, matching the exact requirement of no server, cluster, or web framework management.

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Azure App Service

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Azure Kubernetes Service

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A virtual machine

Question 12

A development team needs to run a Linux container for about 12 minutes each time a request is received. The team does not want to manage a server, cluster, or virtual machine. Which Azure service should the administrator use?

Accepted Answer

Azure Container Instances. Azure Container Instances (ACI) is the correct choice because it allows the team to run a Linux container directly in Azure without managing any underlying infrastructure, such as servers, clusters, or virtual machines. ACI is ideal for short-lived, event-driven workloads like this 12-minute request-based container, as it supports rapid startup and automatic shutdown, aligning with the 'serverless' requirement.

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Azure Kubernetes Service

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Azure Virtual Machines

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Azure App Service

Question 13

A build pipeline must run a Linux container for about 10 minutes per request. The team does not want to manage servers or a Kubernetes cluster. Which Azure service should the administrator choose?

Accepted Answer

Azure Container Instances. Azure Container Instances (ACI) is the correct choice because it allows you to run a Linux container directly on Azure without managing any underlying servers or orchestrators. The 10-minute execution time fits perfectly within ACI's per-second billing model, and the service automatically starts and stops the container on demand, making it ideal for short-lived, ephemeral workloads like build pipeline tasks.

Answer

Azure Virtual Machines

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Azure App Service

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Azure Kubernetes Service

Question 14

A platform team maintains a hardened Windows VM with IIS, an agent, and local configuration files. They need to deploy 40 identical VMs in two regions, preserve version history, and roll back quickly if a new image causes problems. Which two actions should they take? Select two.

Accepted Answer

Generalize the source VM before capture by removing machine-specific state.. Generalizing the source VM with Sysprep (for Windows) removes machine-specific state like security identifiers (SIDs) and hostnames, making the VM suitable for creating a reusable, generalized image. This is a prerequisite for capturing an image that can be deployed to multiple VMs without conflicts. Without generalization, each VM would retain the original machine's identity, causing domain join and licensing issues.

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Place the target virtual machines in an availability set.

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Attach a user-assigned managed identity to the source VM.

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Enable boot diagnostics on the target virtual machines.

Question 15

A reporting server VM will run an analytics engine that uses a large in-memory cache. Required minimums are 8 vCPUs and 64 GiB of RAM, and the workload benefits more from memory than from extra compute. Which Azure VM series is the best fit?

Accepted Answer

E-series, because it provides memory-optimized sizing for data-intensive workloads. The E-series (specifically Ev3, Esv3, or Ebsv5) is memory-optimized, offering the highest memory-to-vCPU ratio among Azure general-purpose families. With a requirement of 64 GiB RAM and only 8 vCPUs, the workload benefits more from memory than compute, making the E-series the best fit. D-series provides balanced ratios but not the memory density needed, while F-series and B-series are compute- or burst-oriented and lack sufficient memory per vCPU.

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B-series, because burstable credits handle temporary spikes economically

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D-series, because it balances general-purpose CPU and memory

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F-series, because it is optimized for high CPU throughput