AZ-900 Practice Test 11 — 15 Questions

Question 1

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?

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

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

Answer

Application Gateway

Answer

Azure Front Door

Question 2

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

Answer

Azure Cost Management

Answer

Azure Policy

Question 3

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 4

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

Answer

Fault tolerance

Answer

Geo-redundancy

Question 5

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 6

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

Answer

Both Azure SQL Database and the virtual machine

Answer

Neither resource requires the company to apply OS patches

Question 7

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

Answer

Azure Resource Manager

Answer

Azure Traffic Manager

Question 8

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

Answer

Azure Virtual Machine Scale Set

Answer

Azure Reserved Virtual Machine Instances

Question 9

A company uses Azure to run a virtual machine for development. They want to ensure that if the physical server hosting the VM fails, the VM is automatically restarted on another server within the same Azure datacenter. Which Azure SLA does this scenario relate to?

Accepted Answer

99.9% VM SLA for a single instance. The scenario describes a single VM that automatically restarts on another physical host within the same datacenter after a hardware failure. This is covered by the Azure VM SLA for a single instance, which guarantees 99.9% uptime when you use premium SSD or ultra disks and have the VM deployed in a single availability zone or just within a datacenter. The SLA specifically addresses connectivity to the VM and its automatic recovery from host failures, not multi-instance redundancy.

Answer

99.95% VM SLA for multiple instances

Answer

99.99% SQL Database SLA

Answer

No SLA applied

Question 10

A company has a policy that all Azure resources deployed to production subscriptions must be tagged with a 'CostCenter' tag. They want to automatically prevent the creation of any resource that does not include this tag. Which Azure Policy effect should they use in their policy definition?

Accepted Answer

Deny. The Deny effect is correct because it actively prevents the creation or deployment of any Azure resource that does not comply with the policy rule, such as missing the required 'CostCenter' tag. Unlike Audit, which only logs compliance violations without blocking the operation, Deny enforces the policy at the time of the resource creation request, ensuring non-compliant resources are never provisioned.

Answer

Audit

Answer

DeployIfNotExists

Answer

Modify

Question 11

A company uses multiple Azure subscriptions for different departments. The finance team wants to monitor spending across all subscriptions and receive automated email alerts when a subscription's actual spending reaches 80% of its monthly budget. The team does not want to write custom scripts or use external tools. Which Azure feature should they use?

Accepted Answer

Azure Cost Management + Budgets. Azure Cost Management + Budgets is the correct feature because it allows you to create budgets at the subscription or resource group level, set alert thresholds (e.g., 80% of actual spend), and configure automated email notifications when the threshold is met—all without custom scripts or external tools. This directly addresses the finance team's requirement to monitor spending across multiple subscriptions and receive alerts.

Answer

Azure Policy

Answer

Azure Blueprints

Answer

Azure Resource Locks

Question 12

A company wants to migrate their on-premises SQL Server database to Azure with minimal changes to their existing application code. Which service offers the highest compatibility?

Accepted Answer

Azure SQL Managed Instance. Azure SQL Managed Instance is correct because it provides near 100% compatibility with on-premises SQL Server, including support for SQL Server Agent, cross-database queries, and CLR integration, enabling a lift-and-shift migration with minimal application code changes. In contrast, Azure SQL Database is a Platform-as-a-Service offering that lacks many SQL Server features like instance-scoped objects, making it less compatible for existing applications.

Answer

Azure SQL Database

Answer

Azure Database for PostgreSQL

Answer

Azure Cosmos DB

Question 13

A company needs to deploy a consistent set of Azure resources (a virtual network, two subnets, and a network security group) into multiple environments: dev, test, and prod. The IT operations team wants to define these resources in a declarative file that can be deployed repeatedly and reliably to different resource groups. The team also wants to version control the file and have the ability to update all environments by redeploying the same file. Which Azure feature should the team use?

Accepted Answer

Azure Resource Manager (ARM) templates. Azure Resource Manager (ARM) templates are the correct choice because they provide a declarative JSON-based file that defines the infrastructure and configuration of Azure resources. This allows the team to deploy a consistent set of resources (virtual network, subnets, network security group) repeatedly and reliably across different resource groups and environments (dev, test, prod). ARM templates support version control, idempotent deployments, and can be used to update all environments by simply redeploying the same template file.

Answer

Azure Policy

Answer

Azure Management Groups

Answer

Azure Advisor

Question 14

Which Azure service enables language understanding by recognizing intents and entities from natural language text?

Accepted Answer

Azure Language Understanding (LUIS). Azure Language Understanding (LUIS) is the correct service because it is specifically designed to extract intents (the user's goal) and entities (key data points) from natural language text. This enables applications to understand user requests in a conversational context, making it the appropriate choice for intent and entity recognition.

Answer

Azure Text Analytics

Answer

Azure Translator

Answer

Azure QnA Maker

Question 15

A financial services company must migrate a critical application to Azure. Regulatory compliance requires that the virtual machines (VMs) hosting this application run on physical servers that are dedicated solely to the company and not shared with any other Azure customer. The company needs full control over server hardware maintenance, including the ability to schedule updates and isolate the environment at the physical layer. Which Azure compute solution should the company use?

Accepted Answer

Azure Dedicated Host. Azure Dedicated Host provides physical servers dedicated to a single Azure subscription, ensuring that no other customer's VMs share the hardware. This meets the regulatory requirement for physical isolation and gives the company full control over server hardware maintenance, including the ability to schedule updates and manage the host lifecycle independently.

Answer

Azure Reserved Instances

Answer

Azure Virtual Machine Scale Sets

Answer

Azure Confidential Computing