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

Question 1

A data disk on VM-Data01 was corrupted after a bad patch, and you already have a snapshot taken last night. The OS disk should remain unchanged. Which two actions should you take to restore only the data disk? Select two.

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

Accepted Answer

Create a managed disk from the snapshot.. A snapshot is a point-in-time copy of a disk that can be used to create a new managed disk. Since you have a snapshot of the corrupted data disk from last night, creating a managed disk from that snapshot restores the data to its state at the time of the snapshot, leaving the OS disk untouched.

Answer

Redeploy the VM and expect the data disk to revert automatically.

Answer

Generalize the VM and redeploy it from the snapshot.

Answer

Replace the snapshot with the current data disk to roll back the VM.

Question 2

A platform team has a generalized VM image that must be published to East US and West Europe today and patched later without overwriting the original build. They want Azure to keep version history and replicate the image to both regions. Which two actions or resources should they use? Select two.

Accepted Answer

Create an Azure Compute Gallery. Azure Compute Gallery (formerly Shared Image Gallery) allows you to store and manage VM image versions, including version history, and replicate them across multiple Azure regions. By creating an image definition and image version within the gallery, you can publish the generalized VM image to East US and West Europe today, and later create a new image version for patching without overwriting the original build, preserving the version history.

Answer

Capture the VM as a single managed image and copy it manually to each region

Answer

Use an availability set to preserve the image

Answer

Take a snapshot of the OS disk and deploy VMs directly from the snapshot

Question 3

A developer packages an internal web app as a Linux container. The app must be published with built-in HTTPS, deployment slots, and autoscale, and the team does not want to manage OS patching or container hosts. Which Azure service should the administrator choose?

Accepted Answer

Azure App Service. Azure App Service is the correct choice because it natively supports Linux containers, built-in HTTPS via TLS/SSL, deployment slots for staging and production swaps, and autoscale based on metrics or schedules. It also abstracts OS patching and container host management, meeting the team's requirement to avoid managing infrastructure.

Answer

Azure Container Instances

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Azure Virtual Machines

Answer

Azure Kubernetes Service

Question 4

After applying a custom image, a VM boots to a black screen with a blinking cursor. The OS never reaches the login prompt. The administrator needs the fastest way to inspect the boot process and view serial console output. What should be enabled or checked?

Accepted Answer

Boot diagnostics. Boot diagnostics captures serial console output and screenshots of the VM during boot. When a VM boots to a black screen with a blinking cursor, the serial console log provides the exact kernel or bootloader messages (e.g., GRUB, initramfs errors) without requiring OS-level access. This is the fastest way to inspect the boot process because it works even when the OS is unresponsive.

Answer

Azure Monitor metrics for the VM

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Network watcher packet capture

Answer

Azure Advisor recommendations

Question 5

A build pipeline needs to run a Linux container for 10 to 15 minutes at a time. The team does not want to manage servers, clusters, or an always-on VM. Which Azure service should be used?

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 provisioning or managing any underlying infrastructure. ACI is ideal for short-lived, burstable workloads like a build pipeline that runs for 10–15 minutes, as it supports per-second billing and automatic startup/shutdown without the overhead of a cluster or VM.

Answer

Azure Kubernetes Service

Answer

Azure Virtual Machine

Answer

Azure App Service

Question 6

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?

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.

Answer

Azure Container Instances

Answer

Azure Virtual Machines

Answer

Azure Kubernetes Service

Question 7

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.

Answer

An availability set

Answer

Azure Load Balancer

Answer

Azure App Service

Question 8

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.

Answer

Availability set

Answer

Availability zone

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Proximity placement group

Question 9

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.

Answer

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

Answer

Use a proximity placement group for the workload.

Answer

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

Question 10

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

Answer

Azure Kubernetes Service

Answer

Azure Batch

Question 11

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

Answer

A single virtual machine scale set instance

Answer

A proximity placement group

Question 12

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.

Answer

Availability set

Answer

Azure Load Balancer

Answer

Route table

Question 13

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.

Answer

Azure Monitor agent

Answer

Azure Policy assignment

Answer

Azure Bastion

Question 14

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.

Answer

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

Answer

Delete and recreate the VM from the same image

Question 15

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.

Answer

Azure App Service

Answer

Azure Kubernetes Service

Answer

A virtual machine