AZ-900 Practice Test 16 — 15 Questions

Question 1

Which aspect of cloud computing allows organizations to focus on their core business rather than managing IT infrastructure?

Accepted Answer

Stop spending money running and maintaining data centers. Cloud computing shifts the burden of hardware procurement, maintenance, power, cooling, and physical security from the organization to the cloud provider. This operational overhead elimination allows IT teams to redirect their efforts toward application development, data analytics, and business innovation rather than racking servers or patching firmware. The core value proposition is the transfer of undifferentiated heavy lifting to the provider.

Answer

Always having the maximum number of resources available

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Paying a lower price for premium hardware

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Getting free storage for all business data

Question 2

Which Azure feature provides a way to organize and manage access to resources by creating a hierarchy above subscriptions?

Accepted Answer

Management Groups. Management Groups provide a hierarchical structure above Azure subscriptions, enabling centralized policy and access management across multiple subscriptions. This allows you to apply Azure Policy and Role-Based Access Control (RBAC) at a higher level, which then cascades down to all child subscriptions and resource groups within the hierarchy.

Answer

Resource groups

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Azure tags

Answer

Azure tenants

Question 3

What is the definition of 'governance' in the context of Azure cloud management?

Accepted Answer

Establishing policies and controls to ensure cloud resources comply with organizational standards. Governance in Azure refers to the framework of policies, roles, and controls that enforce compliance with organizational standards. This is implemented through tools like Azure Policy, which applies rules to resources, and Azure Blueprints, which packages governance artifacts. It ensures that resources are provisioned and managed according to regulatory and business requirements, not just technically managed.

Answer

The process of migrating on-premises workloads to Azure

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The technical management of Azure virtual machines

Answer

Monitoring Azure service performance metrics

Question 4

A web application experiences intermittent performance issues. A developer wants to see the exact path a user request takes through multiple services. Which Azure capability enables this?

Accepted Answer

Azure Application Insights distributed tracing. Azure Application Insights distributed tracing is the correct capability because it provides end-to-end tracking of a user request as it flows across multiple services, components, and dependencies. It uses correlation IDs and telemetry to reconstruct the exact path, latency, and failures at each hop, which is essential for diagnosing intermittent performance issues in a distributed application.

Answer

Azure Monitor Metrics

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Azure Log Analytics queries

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Azure Network Watcher

Question 5

What does 'high availability' mean in Azure?

Accepted Answer

Services that remain operational and accessible with minimal planned or unplanned downtime. High availability in Azure refers to the ability of services and resources to remain operational and accessible despite failures, with minimal planned or unplanned downtime. It is achieved through redundancy, fault tolerance, and automatic failover mechanisms, such as Azure Availability Zones and Availability Sets, which ensure that if one component fails, another takes over without significant interruption.

Answer

Resources that are accessible from any device regardless of operating system

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Resources that can be scaled up to handle maximum load

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Data that is encrypted and protected from unauthorized access

Question 6

A company wants to migrate an on-premises SQL Server database to Azure. They require full administrative control over the database engine, including the ability to configure SQL Server Agent jobs and use cross-database queries. They also want to avoid patching the operating system. Which Azure service should they choose?

Accepted Answer

Azure SQL Managed Instance. Azure SQL Managed Instance is the correct choice because it provides near 100% compatibility with on-premises SQL Server, including full administrative control over the database engine, support for SQL Server Agent jobs, and cross-database queries. It also offloads OS patching to Microsoft, meeting the requirement to avoid OS maintenance.

Answer

Azure SQL Database

Answer

SQL Server on Azure Virtual Machines

Answer

Azure Database for SQL

Question 7

Which Azure service provides a fully managed, cloud-based backup solution for protecting Azure VMs, SQL databases, and on-premises servers?

Accepted Answer

Azure Backup. Azure Backup is the correct service because it provides a fully managed, cloud-based backup solution specifically designed to protect Azure VMs, SQL databases, and on-premises servers. It leverages the Azure Backup vault to store recovery points and supports policy-based scheduling, long-term retention, and application-consistent backups for these workloads.

Answer

Azure Site Recovery

Answer

Azure Archive Storage

Answer

Azure Blob Storage snapshots

Question 8

An application deployed on Azure Virtual Machines needs to be resilient to failures within a single Azure region. The VMs are placed across multiple physically separate locations within the region, each with independent power, cooling, and networking. What is this feature called?

Accepted Answer

Availability zone. Availability zones are physically separate locations within an Azure region, each with independent power, cooling, and networking. By placing VMs across different zones, you protect your application from a single point of failure within the region, such as a datacenter outage. This is the correct feature for achieving intra-region resilience.

Answer

Availability set

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Region pair

Answer

Resource group

Question 9

Which Azure service provides a managed Apache Kafka-compatible event streaming service for high-throughput data pipelines?

Accepted Answer

Azure Event Hubs. Azure Event Hubs is the correct answer because it provides a fully managed, native Apache Kafka-compatible event streaming platform designed for high-throughput data ingestion and processing. It supports the Kafka protocol (including Kafka Connect and Kafka Streams) without requiring you to run any Kafka clusters, making it ideal for real-time data pipelines and analytics.

Answer

Azure Service Bus

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Azure Queue Storage

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Azure Event Grid

Question 10

A startup expects rapid growth and wants its cloud infrastructure to automatically add or remove compute resources based on real-time demand without manual intervention. Which cloud characteristic does this describe?

Accepted Answer

Elasticity. Elasticity is the cloud characteristic that enables automatic scaling of compute resources up or down in response to real-time demand. This startup's requirement to add or remove resources without manual intervention directly matches the definition of elasticity, which is a core benefit of cloud computing.

Answer

High availability

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Fault tolerance

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Disaster recovery

Question 11

Which cloud model provides the greatest degree of control over the underlying infrastructure?

Accepted Answer

Private cloud. The private cloud model provides the greatest degree of control over the underlying infrastructure because it is dedicated to a single organization, allowing full customization of hardware, virtualization layers, networking, and security configurations. In contrast, public clouds abstract infrastructure management away from the customer, limiting control to the application and data layers only.

Answer

Public cloud

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Hybrid cloud

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Community cloud

Question 12

Which Azure AI service provides the ability to search, query, and extract insights from large document collections using AI?

Accepted Answer

Azure Cognitive Search. Azure Cognitive Search (now part of Azure AI Search) is the correct service because it is specifically designed to index, search, and extract insights from large document collections using built-in AI capabilities like OCR, entity recognition, key phrase extraction, and language detection. It integrates with Azure Cognitive Services to enrich documents during indexing, enabling powerful search and query experiences over unstructured data.

Answer

Azure Cognitive Services Text Analytics

Answer

Azure Form Recognizer

Answer

Azure Machine Learning text classification

Question 13

A startup has unpredictable traffic — sometimes thousands of users, sometimes almost none. Which pricing model best fits their needs?

Accepted Answer

Consumption-based (pay-as-you-go) pricing. Consumption-based (pay-as-you-go) pricing is ideal for unpredictable workloads because it charges only for the resources actually used, with no upfront commitment. This model scales automatically with demand, so the startup pays for compute and storage only when traffic spikes occur, and incurs minimal cost during idle periods. It aligns perfectly with the elastic nature of cloud computing, where resources can be provisioned and deprovisioned dynamically.

Answer

Reserved Instances with a 1-year commitment

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Dedicated Hosts with annual contracts

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Fixed monthly flat-rate pricing

Question 14

Which Azure service provides secure access to Azure virtual machines using an HTML5 browser-based RDP and SSH connection without requiring public IP addresses?

Accepted Answer

Azure Bastion. Azure Bastion is a fully managed PaaS service that provides secure and seamless RDP and SSH connectivity to Azure virtual machines directly through the Azure portal using an HTML5-based browser. It eliminates the need for public IP addresses on the VMs, as the connection is established over TLS within the same virtual network, bypassing exposure to the internet.

Answer

Azure VPN Gateway

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Azure Private Link

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Azure Active Directory Application Proxy

Question 15

What is the difference between the Azure portal and Azure CLI?

Accepted Answer

Azure portal is a web GUI; Azure CLI is a command-line scripting tool. The Azure portal is a web-based graphical user interface (GUI) for managing Azure resources through a browser, while Azure CLI is a cross-platform command-line tool that allows you to script and automate resource management using commands. Both tools can be used for production and development tasks, and they both manage resources—just through different interaction methods.

Answer

Azure portal is for production; Azure CLI is only for development

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Azure portal only works on Windows; Azure CLI works cross-platform

Answer

Azure portal manages resources; Azure CLI only deploys applications