AZ-900 Practice Test 3 — 10 Questions

Question 1

What is the purpose of Azure Service Level Agreements (SLAs)?

Accepted Answer

To define Microsoft's commitments for uptime and the remedies if not met. Azure SLAs define Microsoft's formal commitments regarding service availability (uptime) and connectivity. They specify the guaranteed uptime percentage (e.g., 99.9% for most virtual machines) and outline the service credits (remedies) customers receive if Microsoft fails to meet those commitments. This is not a guarantee of zero downtime but a contractual promise with financial recourse.

Answer

To guarantee Microsoft will never have any downtime

Answer

To prevent customers from migrating to other cloud providers

Answer

To specify how Azure handles customer data

Question 2

A manufacturing company deploys a batch processing application on Azure. The processing workload is highly unpredictable; sometimes the application requires hundreds of virtual machines for a few hours to process a large queue of jobs, and at other times it requires only a handful of virtual machines. The company configures the application to automatically add and remove virtual machines based on the size of the processing queue, ensuring that they never pay for idle capacity. Which cloud characteristic does this scenario primarily demonstrate?

Accepted Answer

Elasticity. The scenario describes automatically scaling the number of virtual machines up and down based on the queue size, which directly aligns with the cloud characteristic of elasticity. Elasticity allows resources to be dynamically provisioned and de-provisioned to match workload demand, ensuring the company never pays for idle capacity. This is distinct from high availability, fault tolerance, or disaster recovery, which focus on uptime, redundancy, and data protection rather than dynamic scaling.

Answer

High availability

Answer

Fault tolerance

Answer

Disaster recovery

Question 3

A company is adopting Azure and needs to deploy a standardized environment that includes a resource group, a virtual network with specific IP address ranges, and a set of Azure Policy definitions to restrict allowed deployment locations. The environment will be deployed to multiple subscriptions used by different departments. The company requires a repeatable, versioned package that defines the resources, policies, and role assignments as a single item. The solution must allow updates to be managed and enforced over time. Which Azure feature should the company use?

Accepted Answer

Azure Blueprints. Azure Blueprints is the correct choice because it enables the orchestrated deployment of a standardized environment—including resource groups, virtual networks, Azure Policy definitions, and role assignments—as a single, versioned, and updatable package. Unlike ARM templates, Blueprints natively supports versioning, policy assignment, and role assignment as first-class artifacts, and it allows the blueprint to be assigned to multiple subscriptions while maintaining a central source of truth for updates and enforcement.

Answer

Azure Policy

Answer

ARM templates

Answer

Management groups

Question 4

A company runs a mission-critical application on Azure virtual machines. The application is hosted in the East US Azure region. To protect against a regional disaster, the company configures Azure Site Recovery to replicate the VMs to a secondary region (West US). If a disaster occurs in East US, the company can initiate a failover to West US and bring the application back online within minutes using the replicated data. Which cloud computing benefit does this scenario best demonstrate?

Accepted Answer

Disaster recovery and business continuity. Azure Site Recovery provides disaster recovery and business continuity by replicating Azure VMs from the primary region (East US) to a secondary region (West US). In the event of a regional disaster, failover can be initiated to bring the application online within minutes using the replicated data, ensuring minimal downtime and data loss. This directly aligns with the cloud benefit of disaster recovery and business continuity, which focuses on maintaining operations during catastrophic failures.

Answer

Elasticity

Answer

Pay-as-you-go pricing

Answer

Geo-redundancy

Question 5

A company is migrating its on-premises batch processing jobs to Azure. The jobs are triggered by file uploads to an on-premises file share. After migration, the files will be uploaded to Azure Blob Storage. The company wants a solution where code runs automatically whenever a new blob is created, with no requirement to manage servers or containers. The code must process the blob and then terminate. Compute resources should be used only when there is a file to process. Which Azure compute service should the company use?

Accepted Answer

Azure Functions. Azure Functions is the correct choice because it provides a serverless compute service that can be triggered automatically by Azure Blob Storage events (e.g., new blob creation). The code runs only when a blob is uploaded, processes it, and then terminates, ensuring zero compute cost when idle. No servers or containers need to be managed, aligning perfectly with the requirement for event-driven, ephemeral execution.

Answer

Azure App Service

Answer

Azure Kubernetes Service (AKS)

Answer

Azure Virtual Machine Scale Sets

Question 6

A company runs a critical web application on Azure virtual machines. To ensure the application remains accessible even if an entire Azure datacenter becomes unavailable due to a power outage, the company deploys virtual machines in two different Azure regions and uses Azure Traffic Manager to automatically route traffic to the healthy region. Which benefit of cloud computing does this configuration primarily demonstrate?

Accepted Answer

High availability. This configuration demonstrates high availability because it uses Azure Traffic Manager to route traffic across two Azure regions, ensuring the application remains accessible even if an entire datacenter fails. High availability focuses on minimizing downtime by eliminating single points of failure, which is exactly what deploying VMs in multiple regions with traffic routing achieves.

Answer

Elasticity

Answer

Cost reduction

Answer

Security

Question 7

A startup application experiences unpredictable traffic spikes. The application runs on Azure Virtual Machines. They want the VMs to automatically increase in number during peak times and decrease during low usage, without manual intervention. Which cloud characteristic does this requirement describe?

Accepted Answer

Elasticity. Elasticity is the cloud characteristic that enables resources to automatically scale out (increase) during high demand and scale in (decrease) during low demand, matching capacity to workload in real time. In this scenario, Azure Virtual Machines can be configured with autoscale rules (e.g., based on CPU > 75% for 5 minutes) to add or remove VM instances without manual intervention. This directly addresses the startup's need to handle unpredictable traffic spikes while optimizing cost.

Answer

High availability

Answer

Disaster recovery

Answer

Geo-redundancy

Question 8

A software company develops a microservices application using Docker containers. The application consists of multiple services that need to be deployed, scaled, and managed together. The company wants to use Azure to orchestrate and manage these containers without provisioning or managing the underlying virtual machines. Which Azure service should they use?

Accepted Answer

Azure Kubernetes Service (AKS). Azure Kubernetes Service (AKS) is the correct choice because it provides a fully managed Kubernetes orchestration platform that automates the deployment, scaling, and management of containerized microservices. AKS abstracts the underlying virtual machines, allowing the company to focus on application logic without provisioning or managing the VM infrastructure, which directly matches the requirement for orchestration without VM management.

Answer

Azure Container Instances

Answer

Azure App Service

Answer

Azure Batch

Question 9

A healthcare organization needs to enforce a set of compliance requirements (e.g., enable encryption on all storage accounts, restrict public network access to SQL databases, and enforce a specific TLS version) across all Azure subscriptions. The organization has defined these requirements as individual Azure Policy definitions. The governance team wants to assign all these policies together as a single unit to a management group, ensuring that any new subscription created under that group automatically receives all the policies. Which Azure object should the governance team create first?

Accepted Answer

Azure Policy initiative. An Azure Policy initiative is a collection of individual policy definitions designed to group related policies together for assignment as a single unit. By creating an initiative that contains the required compliance policies (encryption, network restrictions, TLS version) and assigning it to a management group, any new subscription under that group automatically inherits the initiative, ensuring consistent enforcement.

Answer

Azure Blueprint

Answer

Azure Management Group

Answer

Azure Resource Manager template

Question 10

A company is evaluating whether to move to cloud. Their IT manager says they are concerned about losing control over their data. Which Azure feature MOST directly addresses this concern?

Accepted Answer

Azure guarantees data never leaves the specified region unless configured to do so. Azure data residency controls, combined with Azure regions and data sovereignty guarantees, ensure that customer data stays within specified geographic boundaries. Microsoft's contractual commitments in the Microsoft Products and Services Data Protection Addendum (DPA) address data sovereignty concerns.

Answer

Microsoft employees have unrestricted access to all customer data

Answer

Data is automatically shared with government agencies

Answer

All Azure data is stored in the United States