Describe Azure architecture and services: Describe Azure storage services Flashcards
What is an Azure Storage Account?
A unique namespace in Azure to store data, accessible over HTTP or HTTPS, providing secure, highly available, durable, and scalable storage.
What are the key Azure storage services?
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.
What are the benefits of Azure Storage?
Durability and high availability.
Security with encryption.
Scalability for growing data needs.
Managed services with no infrastructure concerns.
Global accessibility.
What is Locally Redundant Storage (LRS)?
Replicates data three times within a single datacenter; cost-effective but vulnerable to datacenter-level failures.
What is Zone-Redundant Storage (ZRS)?
Replicates data synchronously across three availability zones in a region, ensuring high availability.
What is Geo-Redundant Storage (GRS)?
Replicates data within the primary region using LRS and asynchronously to a secondary region using LRS.
What is Geo-Zone-Redundant Storage (GZRS)?
Combines ZRS in the primary region with LRS in a secondary region for maximum durability and disaster recovery.
What is Read-Access Geo-Redundant Storage (RA-GRS)?
Allows read access to replicated data in the secondary region.
What is the typical Recovery Point Objective (RPO) for Azure Storage?
Less than 15 minutes, although there’s no SLA for replication times.
What are the Azure Storage access tiers?
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).
How can access tiers be applied in Azure Storage?
At the account level for Hot, Cool, and Cold tiers.
At the blob level for all tiers, including Archive.
What is AzCopy?
A command-line utility for copying data to and from Azure Storage, supporting one-directional synchronization.
What is Azure Storage Explorer?
A GUI-based tool for managing Azure Storage files and blobs across Windows, macOS, and Linux.
What is Azure File Sync?
A tool to centralize file shares in Azure Files while maintaining compatibility with Windows file servers.
What is Azure Migrate?
A service to assess and migrate on-premises environments to Azure, supporting servers, databases, and applications.
What is Azure Data Box?
A physical device for transferring large datasets (over 40 TB) to Azure when network connectivity is limited.
What is Azure Blob Storage?
A massively scalable, unstructured storage solution ideal for images, videos, backups, and data analytics.
What is Azure Files?
Fully managed file shares accessible via SMB or NFS protocols, supporting cloud and on-premises environments.
What is Azure Queue Storage?
A messaging service for reliable communication between application components, supporting large message volumes.
What is Azure Disk Storage?
Block-level storage for Azure VMs, offering high performance and resiliency.
What is Azure Table Storage?
A NoSQL data store for structured, non-relational data, suitable for hybrid and multicloud solutions.
When should you use Azure Blob Storage?
Serving images or documents to browsers.
Storing backups and disaster recovery data.
Streaming video or audio.
When should you use Azure Files?
Replacing on-premises file shares.
Sharing files across cloud and on-premises environments.
Supporting hybrid setups with Azure File Sync.
When should you use Azure Queue Storage?
Creating a backlog of asynchronous tasks.
Triggering actions in response to messages, such as Azure Functions.
When should you use Azure Data Box?
One-time large data migrations to Azure.
Periodic data transfers when network connectivity is limited.
