Exam AZ-900
Describe Azure architecture and services

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Sample AZ-900 Describe Azure architecture and services questions with explanations

Use these examples to check how the topics are tested. Read the explanation for every option you were unsure about, then start a scored practice set above.

Question 1 Describe Azure architecture and services

A company needs to store unstructured data like images and videos for a web application. Which Azure storage service is most suitable?

  • ○ Azure Disk Storage
  • ○ Azure File Storage
  • ✓ Azure Blob Storage
  • ○ Azure Table Storage
Answer: C. Azure Blob Storage
Azure Blob Storage is optimized for storing large amounts of unstructured data, such as images, videos, and documents, and is commonly used for web content and backup.
Question 2 Domain 2: Describe Azure architecture and services

An organization needs to store unstructured data like documents and images for a web application. The data must be accessible via HTTP/HTTPS from anywhere. Which Azure storage service should they use?

  • ○ Azure Files
  • ✓ Azure Blob Storage
  • ○ Azure Table Storage
  • ○ Azure Queue Storage
Answer: B. Azure Blob Storage
Azure Blob Storage is optimized for storing massive amounts of unstructured data, such as text or binary data (images, documents, video/audio). Objects in Blob Storage are accessible via HTTP/HTTPS from anywhere in the world, making it ideal for serving web content.
Question 3 Domain 2: Describe Azure architecture and services

An organization needs to manage billing and access control for different departments separately in Azure. What should they use to logically isolate resources and provide distinct billing reports?

  • ○ Resource Groups
  • ○ Availability Zones
  • ✓ Subscriptions
  • ○ Virtual Networks
Answer: C. Subscriptions
Subscriptions in Azure provide a way to organize and manage resources, with separate billing and access control. They allow departments to have their own isolated environments for cost tracking and security.
Question 4 Domain 2: Describe Azure architecture and services

Your application uses Azure Blob Storage. You need to temporarily allow a partner's application to upload a file directly to a specific blob, without sharing your storage account keys. Which feature should you use?

  • ✓ Shared Access Signatures
  • ○ Azure Active Directory authentication
  • ○ Storage account firewall rules
  • ○ Private Endpoints
Answer: A. Shared Access Signatures
A Shared Access Signature (SAS) provides secure, delegated access to specific storage account resources with granular constraints (like permissions, IP range, and expiry time). It's ideal for granting limited, temporary access to clients without compromising your account keys.
Question 5 Domain 2: Describe Azure architecture and services

A company wants to deploy a managed relational database service in Azure with built-in high availability and automated backups. Which service should they choose?

  • ✓ Azure SQL Database
  • ○ Azure Cosmos DB
  • ○ Azure Blob Storage
  • ○ Azure Table Storage
Answer: A. Azure SQL Database
Azure SQL Database is a fully managed relational database service with built-in high availability, automated backups, and scalability, part of the Azure SQL family.
Question 6 Domain 2: Describe Azure architecture and services

An application needs to send and receive messages between components asynchronously. Which Azure storage service is designed for messaging?

  • ○ Azure Blob Storage
  • ○ Azure File Storage
  • ✓ Azure Queue Storage
  • ○ Azure Table Storage
Answer: C. Azure Queue Storage
Azure Queue Storage is a messaging service that enables asynchronous communication between application components via queues, supporting decoupling and scalability.

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