AZ-900 Practice Test 10 — 10 Questions

Question 1

A company uses multiple Azure subscriptions for development and production. The finance team wants to set a monthly budget of $1,000 for a specific dev subscription. When the actual cost reaches 80% of the budget, the team wants to receive an email alert. If the cost exceeds 100%, they want to automatically stop a specific virtual machine in that subscription to prevent overspending. Which Azure feature should the team use to automate the stopping of the VM when the budget is exceeded?

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

Accepted Answer

Azure Cost Management + Budgets with an action group configured to run a Runbook. Azure Cost Management + Budgets allows you to set a budget and configure alerts based on actual or forecasted cost thresholds. When the cost exceeds 100% of the budget, you can trigger an action group that runs an Azure Automation Runbook, which can be scripted to stop a specific virtual machine. This provides automated cost control without manual intervention.

Answer

Azure Policy with a Deny effect

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Azure Advisor cost recommendations

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Azure Resource Graph queries with Azure Monitor alerts

Question 2

A company wants to use cloud services to quickly spin up a test environment for a new application, use it for a week, and then delete it. They want to minimize costs by only paying for the compute resources during that week. This scenario best describes which cloud characteristic?

Accepted Answer

Self-service. Self-service in cloud computing allows users to provision and de-provision resources (like compute instances) on demand without manual intervention from the cloud provider. In this scenario, the company can spin up a test environment, use it for a week, and delete it, paying only for the compute resources consumed during that period, which aligns with the self-service characteristic where users manage their own resources via a web portal or API.

Answer

Rapid elasticity

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Measured service

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Resource pooling

Question 3

A company runs a web application on Azure App Service. They want to route users to the nearest regional deployment based on DNS queries to minimize latency. Which Azure service should they use for this global traffic routing?

Accepted Answer

Traffic Manager. Traffic Manager is a DNS-based traffic load balancer that routes incoming DNS queries to the nearest regional endpoint based on the user's geographic location, network latency, or other routing methods. This ensures users are directed to the closest Azure App Service deployment, minimizing latency for global traffic.

Answer

Azure Load Balancer

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Application Gateway

Answer

Azure Front Door

Question 4

A company uses Azure for multiple workloads. The finance team wants to identify virtual machines that are consistently underutilized (average CPU usage below 5%) so they can reduce costs by resizing or shutting down those VMs. They want a built-in Azure tool that automatically analyzes resource usage and provides actionable recommendations. Which Azure service should they use?

Accepted Answer

Azure Advisor. Azure Advisor is the correct service because it is a built-in Azure tool that automatically analyzes resource usage and provides actionable recommendations to optimize costs, including identifying underutilized virtual machines. It specifically evaluates CPU usage patterns and suggests resizing or shutting down VMs with consistently low utilization (e.g., average CPU below 5%) to reduce costs without manual intervention.

Answer

Azure Monitor

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Azure Cost Management

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Azure Policy

Question 5

A company uses Azure to host its virtual machines and storage. The company receives a monthly invoice that charges based on the exact number of virtual machine hours and gigabytes of storage consumed. No upfront payment is required. Which characteristic of cloud computing does this billing model represent?

Accepted Answer

Measured service. The billing model charges based on exact virtual machine hours and gigabytes of storage consumed, with no upfront payment. This directly reflects the measured service characteristic of cloud computing, where resource usage is metered, monitored, and billed according to consumption. Azure tracks usage metrics (e.g., VM runtime in hours, storage in GB-months) via its meters and generates invoices based on these precise measurements.

Answer

Rapid elasticity

Answer

Resource pooling

Answer

On-demand self-service

Question 6

A retail company experiences fluctuating customer traffic throughout the year. During peak seasons, traffic can increase by 300% for a few weeks. The company wants to pay only for the compute resources it uses, without needing to invest in permanent infrastructure to handle peak loads. Which cloud computing characteristic best supports this requirement?

Accepted Answer

Elasticity. Elasticity is the cloud computing characteristic that allows resources to automatically scale up or down based on demand. In this scenario, the retail company needs to handle a 300% traffic spike during peak seasons without permanently provisioning infrastructure, and elasticity enables dynamic provisioning and de-provisioning of compute resources to match the fluctuating load, ensuring they pay only for what they use.

Answer

High availability

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Fault tolerance

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Geo-redundancy

Question 7

A company uses Azure to host a web application. The finance team reviews the monthly invoice and notices that the charges are based on the exact number of hours each virtual machine was running, the amount of storage consumed, and the volume of data transferred out of Azure. They did not pay a fixed upfront cost. Which cloud computing characteristic does this billing model best illustrate?

Accepted Answer

Measured service. The billing model described—charging based on exact hours of VM runtime, storage consumed, and data transfer out—directly aligns with the 'measured service' characteristic of cloud computing. This characteristic means cloud providers meter and bill for resource usage at a granular level (e.g., per hour, per GB), with no upfront fixed cost, enabling a pay-as-you-go model. Azure implements this through its usage meters and billing APIs, which track consumption precisely for each resource.

Answer

Rapid elasticity

Answer

Resource pooling

Answer

On-demand self-service

Question 8

A company runs its production database on an Azure SQL Database (PaaS) and its custom application on an Azure virtual machine (IaaS). The company needs to ensure that operating system security patches are applied. According to the shared responsibility model, which resource requires the company to apply OS patches?

Accepted Answer

Azure virtual machine only. In the shared responsibility model, the customer is responsible for securing the operating system on IaaS resources like Azure virtual machines. Azure SQL Database is a PaaS service where Microsoft manages the underlying OS, including patch management. Therefore, only the Azure virtual machine requires the company to apply OS security patches.

Answer

Azure SQL Database only

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Both Azure SQL Database and the virtual machine

Answer

Neither resource requires the company to apply OS patches

Question 9

A company is designing a disaster recovery solution for a critical application. The solution must ensure that if an entire Azure region becomes unavailable due to a natural disaster, the application can fail over to a different region. The company wants to minimize latency between the primary and secondary regions for data replication. Which Azure feature should the company use?

Accepted Answer

Azure Paired Regions. Azure Paired Regions are designed to provide disaster recovery by replicating data across two geographically separated regions within the same geopolitical boundary. If an entire region fails, the paired region can serve as the failover target, and the physical proximity of paired regions minimizes replication latency compared to arbitrary region pairs.

Answer

Availability Zones

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Azure Resource Manager

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Azure Traffic Manager

Question 10

A company runs a critical application on multiple Azure virtual machines (VMs) in the East US region. The application requires that the VMs are physically separated from any other customer's workloads and that the underlying physical servers are dedicated to this company alone. The compliance team mandates that no other customer's VMs can run on the same physical hardware. Which Azure compute offering should the company use to meet this requirement?

Accepted Answer

Azure Dedicated Host. Azure Dedicated Host provides single-tenant physical servers dedicated to a single customer, ensuring that no other customer's VMs run on the same hardware. This meets the compliance requirement for physical separation and dedicated underlying servers. The company can deploy VMs directly onto these dedicated hosts, guaranteeing isolation at the hardware level.

Answer

Azure Availability Set

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Azure Virtual Machine Scale Set

Answer

Azure Reserved Virtual Machine Instances