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Microsoft Azure Fundamentals - AZ-900 > Describe Azure architecture and services: Describe Azure storage services > Flashcards

Describe Azure architecture and services: Describe Azure storage services Flashcards

1
Q

What is an Azure Storage Account?

A

A unique namespace in Azure to store data, accessible over HTTP or HTTPS, providing secure, highly available, durable, and scalable storage.

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2
Q

What are the key Azure storage services?

A

Azure Blobs: Object storage for text and binary data.
Azure Files: Managed file shares.
Azure Queues: Messaging between components.
Azure Disks: Block storage for VMs.
Azure Tables: NoSQL structured data storage.

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3
Q

What are the benefits of Azure Storage?

A

Durability and high availability.
Security with encryption.
Scalability for growing data needs.
Managed services with no infrastructure concerns.
Global accessibility.

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4
Q

What is Locally Redundant Storage (LRS)?

A

Replicates data three times within a single datacenter; cost-effective but vulnerable to datacenter-level failures.

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5
Q

What is Zone-Redundant Storage (ZRS)?

A

Replicates data synchronously across three availability zones in a region, ensuring high availability.

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6
Q

What is Geo-Redundant Storage (GRS)?

A

Replicates data within the primary region using LRS and asynchronously to a secondary region using LRS.

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7
Q

What is Geo-Zone-Redundant Storage (GZRS)?

A

Combines ZRS in the primary region with LRS in a secondary region for maximum durability and disaster recovery.

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8
Q

What is Read-Access Geo-Redundant Storage (RA-GRS)?

A

Allows read access to replicated data in the secondary region.

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9
Q

What is the typical Recovery Point Objective (RPO) for Azure Storage?

A

Less than 15 minutes, although there’s no SLA for replication times.

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10
Q

What are the Azure Storage access tiers?

A

Hot Tier: For frequently accessed data.
Cool Tier: For infrequently accessed data (stored at least 30 days).
Cold Tier: For rarely accessed data (stored at least 90 days).
Archive Tier: For long-term storage with flexible latency requirements (stored at least 180 days).

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11
Q

How can access tiers be applied in Azure Storage?

A

At the account level for Hot, Cool, and Cold tiers.
At the blob level for all tiers, including Archive.

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12
Q

What is AzCopy?

A

A command-line utility for copying data to and from Azure Storage, supporting one-directional synchronization.

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13
Q

What is Azure Storage Explorer?

A

A GUI-based tool for managing Azure Storage files and blobs across Windows, macOS, and Linux.

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14
Q

What is Azure File Sync?

A

A tool to centralize file shares in Azure Files while maintaining compatibility with Windows file servers.

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15
Q

What is Azure Migrate?

A

A service to assess and migrate on-premises environments to Azure, supporting servers, databases, and applications.

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16
Q

What is Azure Data Box?

A

A physical device for transferring large datasets (over 40 TB) to Azure when network connectivity is limited.

17
Q

What is Azure Blob Storage?

A

A massively scalable, unstructured storage solution ideal for images, videos, backups, and data analytics.

18
Q

What is Azure Files?

A

Fully managed file shares accessible via SMB or NFS protocols, supporting cloud and on-premises environments.

19
Q

What is Azure Queue Storage?

A

A messaging service for reliable communication between application components, supporting large message volumes.

20
Q

What is Azure Disk Storage?

A

Block-level storage for Azure VMs, offering high performance and resiliency.

21
Q

What is Azure Table Storage?

A

A NoSQL data store for structured, non-relational data, suitable for hybrid and multicloud solutions.

22
Q

When should you use Azure Blob Storage?

A

Serving images or documents to browsers.
Storing backups and disaster recovery data.
Streaming video or audio.

23
Q

When should you use Azure Files?

A

Replacing on-premises file shares.
Sharing files across cloud and on-premises environments.
Supporting hybrid setups with Azure File Sync.

24
Q

When should you use Azure Queue Storage?

A

Creating a backlog of asynchronous tasks.
Triggering actions in response to messages, such as Azure Functions.

25
Q

When should you use Azure Data Box?

A

One-time large data migrations to Azure.
Periodic data transfers when network connectivity is limited.

Microsoft Azure Fundamentals - AZ-900 (8 decks)

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