AZ-900 Practice Test 9 — 10 Questions

Question 1

A startup company plans to move its e-commerce application to Azure. The startup has limited upfront capital and expects demand to be unpredictable initially. The key requirement is that the company should only be charged for the compute and storage resources it actually uses, with the ability to pay per hour or per minute. This requirement directly maps to which fundamental benefit of cloud computing?

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

Accepted Answer

Consumption-based pricing – customers pay only for the resources they consume, with no upfront costs.. The startup's requirement to pay only for the compute and storage resources it actually uses, with per-hour or per-minute billing and no upfront capital, directly maps to consumption-based pricing. This cloud benefit eliminates the need for large initial investments and aligns costs with actual usage, which is ideal for unpredictable demand scenarios.

Answer

High availability – redundant infrastructure ensures the application stays online.

Answer

Elasticity – resources can automatically scale out and in based on demand.

Answer

Disaster recovery – data and applications are backed up to another region.

Question 2

A large enterprise has multiple Azure subscriptions for different departments. The central IT team wants to enforce a policy that restricts the Azure regions where resources can be deployed. The policy must automatically apply to all existing subscriptions and to any new subscriptions created in the future, without requiring manual assignment to each subscription individually. Which Azure feature should the central IT team use to achieve this hierarchical governance?

Accepted Answer

Azure Management Groups. Azure Management Groups provide a hierarchical structure above subscriptions, allowing policies (like region restrictions) to be assigned at the management group level. This inheritance ensures the policy automatically applies to all existing subscriptions within the group and to any new subscriptions added later, without manual per-subscription assignment.

Answer

Azure Blueprints

Answer

Azure Resource Groups

Answer

Azure Policy alone assigned to each subscription

Question 3

A global consulting firm has offices in New York, London, and Tokyo. They deployed a document management system on Azure App Service. Consultants need to access the system from any location worldwide using laptops or smartphones over public Wi-Fi or cellular networks, without needing a VPN connection. After deployment, all consultants can successfully log in and use the application from any internet-connected device. Which characteristic of cloud computing does this scenario best illustrate?

Accepted Answer

Broad network access. This scenario best illustrates broad network access because the document management system is accessible over the internet from any location using laptops or smartphones without requiring a VPN. Broad network access means resources can be accessed via standard network protocols (e.g., HTTPS) from a wide range of devices, including mobile phones and laptops, over public networks like Wi-Fi or cellular. The consultants' ability to log in and use the application from any internet-connected device directly demonstrates this characteristic.

Answer

High availability

Answer

Resource pooling

Answer

Rapid elasticity

Question 4

A company has a regulatory requirement that all Azure resources must be deployed only in the West Europe region. The governance team needs to automatically prevent any user or application from creating resources in any other region. The team must also ensure that this restriction is applied to all existing and future subscriptions within the tenant. Which Azure service should the governance team use?

Accepted Answer

Azure Policy. Azure Policy is correct because it enforces organizational standards by evaluating resources for compliance with defined rules, such as restricting allowed regions. By creating a policy definition that denies resource creation outside West Europe and assigning it at the management group scope, the restriction applies to all existing and future subscriptions within the tenant automatically.

Answer

Azure Blueprints

Answer

Management Groups

Answer

Azure Role-Based Access Control (RBAC)

Question 5

A company's CFO is evaluating the financial impact of moving the company's on-premises data center to Azure. The on-premises data center requires significant upfront investment for servers, storage, and networking equipment, which is depreciated over several years. In contrast, Azure offers a pay-as-you-go pricing model where the company pays only for the resources it consumes, with no upfront costs. The CFO wants to understand how this shift changes the company's financial reporting. Which statement accurately describes the financial difference between on-premises and cloud spending?

Accepted Answer

On-premises is a capital expenditure (CapEx), while Azure is an operational expenditure (OpEx).. On-premises data centers require significant upfront capital investment for hardware, which is capitalized as a capital expenditure (CapEx) and depreciated over time. Azure's pay-as-you-go model shifts costs to operational expenditure (OpEx), where you pay only for consumed resources with no upfront costs, directly impacting financial reporting by converting fixed costs to variable costs.

Answer

On-premises is an operational expenditure (OpEx), while Azure is a capital expenditure (CapEx).

Answer

Both on-premises and Azure are classified as capital expenditures (CapEx).

Answer

Both on-premises and Azure are classified as operational expenditures (OpEx).

Question 6

A company is designing a highly available application deployment in Azure. The solution must ensure that virtual machines are placed in physically separate data centers within the same Azure region to protect against a single data center failure. Which Azure feature should the company use?

Accepted Answer

Availability Zone. Availability Zones are physically separate data centers within an Azure region, each with independent power, cooling, and networking. By deploying VMs across multiple zones, the application remains available even if a single data center fails, meeting the requirement for physical separation within the same region.

Answer

Availability Set

Answer

Virtual Machine Scale Set

Answer

Azure Resource Manager

Question 7

A company has an Azure subscription with hundreds of existing virtual machines. The governance team wants to enforce a policy that every virtual machine must have a tag named 'CostCenter' with a valid value. The team wants to automatically add the 'CostCenter' tag with a default value of 'Undefined' to any existing or new virtual machine that is missing the tag. They do not want to block the creation of virtual machines that are missing the tag, but they do want the tag to be added automatically within a few minutes of detection. Which Azure Policy effect should the team use?

Accepted Answer

Modify. The Modify effect is correct because it can automatically add or change tags on existing and new resources without blocking creation. Unlike Append, which only works during resource creation and cannot modify existing resources, Modify uses a 'remediation' task to fix non-compliant resources after they are created, aligning with the requirement to add the tag within minutes of detection.

Answer

Audit

Answer

Deny

Answer

Append

Question 8

A company deploys a mission-critical application across three Azure availability zones. The application is designed to continue operating without any interruption if an entire availability zone becomes unavailable. Which cloud computing characteristic does this scenario best illustrate?

Accepted Answer

Fault tolerance. B is correct because fault tolerance is the ability of a system to continue operating without any interruption when a component fails. Deploying a mission-critical application across three Azure availability zones ensures that if an entire zone goes down, the application remains operational with zero downtime, which is the defining characteristic of fault tolerance.

Answer

Elasticity

Answer

High availability

Answer

Scalability

Question 9

A company runs several Azure virtual machines and an Azure SQL Database in a single subscription. The operations team needs a single, personalized dashboard that displays the current health status of these specific resources, as well as any upcoming planned maintenance events from Microsoft that might affect them. The team wants to see all this information in one place without having to navigate multiple tools. Which Azure service should the operations team use to meet these requirements?

Accepted Answer

Azure Service Health. Azure Service Health provides a personalized dashboard that shows the health of your specific Azure services and resources, including Azure virtual machines and SQL Database, in a single subscription. It also surfaces upcoming planned maintenance events from Microsoft that could affect those resources, meeting the requirement for a unified view without navigating multiple tools.

Answer

Azure Resource Health

Answer

Azure Monitor

Answer

Azure Advisor

Question 10

A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?

Accepted Answer

Availability zone. Availability zones are physically separate data centers within an Azure region, each with independent power, cooling, and networking. By deploying the web tier VMs across two distinct zones, the application avoids a single point of failure from an infrastructure outage at the data center level, meeting the requirement for high availability across distinct data centers.

Answer

Availability set

Answer

Proximity placement group

Answer

Azure Load Balancer