MULTICLOUD INTERVIEW QUESTIONS

Interview Questions

Storage Account

  1. What is Storage account

     An Azure storage account contains all of your Azure Storage data objects: blobs, files, queues, and tables. Storage account name should be unique, it shouldbe 3 – 24 charcters log and all should be in lowercase letters

  2. You have blobs in your storage account, now when you are accessing blob from app service, you are getting 403 error

     issue with unauthorized access, make sure your provide correct network access, check outbound and provide access.

  3. How many storages are in storage account

    There are four data storages in storage account

    1. Container
    2. File share
    3. Tables
    4. Queues
  4. What are Blob types?

    The Blob types are:

    1. a) Block Blobs: Block Blobs are designed for efficient storage and retrieval of large files, making them ideal for media streaming and data backups. These blobs consist of data blocks that can be uploaded concurrently, enhancing their suitability for scenarios that require high-speed data transfer
    2. b) Page Blobs: Page Blobs cater to random read and write operations, commonly employed with Virtual Machines.
    3. c) Append Blobs: Append blobs are optimised for append operations. They are often used for scenarios like logging, where you need to add data to a blob without modifying the existing content. 
  5. How many storage account can be created in one Subscription

    250 storage accounts can be created in one subscription

  6. What is Azure Files Storage?

    Azure Files is a file share service offered by Azure that is accessible via the industry standard Server Message Block (SMB) protocol or Network File System (NFS) protocol.

    Following are some scenario in which Azure files.

    – To replace or supplement traditional on-premises NAS devices or file servers.
    – For ‘List and Shift’ applications that need a file share to store application data.
    – For cloud deployments – to share application settings across application instances, to store application diagnostics such as log files, metrics, and crash dumps.

  7. What is data replication in Azure Storage?

    Azure Storage offers several replication options to meet different availability and redundancy requirements which are mentioned below: 

    Local Redundant Storage (LRS) è Locally redundant storage (LRS) replicates your storage account three times within a single data center in the primary region

    Zone-Redundant Storage (ZRS) è Zone-redundant storage (ZRS) replicates your storage account synchronously across three Azure availability zones in the primary region.

     

    Geo-redundant storage (GRS) è  Geo-redundant storage (GRS) copies your data synchronously three times within a single physical location in the primary region using LRS. It then copies your data asynchronously to a single physical location in a secondary region that is hundreds of miles away from the primary region.

    Geo-zone-redundant storage (GZRS) è Geo-zone-redundant storage (GZRS) combines the high availability provided by redundancy across availability zones with protection from regional outages provided by geo-replication. Data in a GZRS account is copied across three Azure availability zones in the primary region. In addition, it also replicates to a secondary geographic region for protection from regional disasters

  8. ways to access a storage account in Azure?

    There are multiple ways to access a storage account in Azure, including:

    Storage account access keys: When a storage account is created, Azure generates two 512-bit access keys that can be used to authorize access to data.

    HTTP or HTTPS: Data in Azure Storage can be accessed from anywhere in the world over HTTP or HTTPS.

    Azure role-based access control (Azure RBAC): Azure RBAC can be used to manage permissions to blob, queue, and table resources in a storage account.

    Azure attribute-based access control (ABAC): ABAC can be used to add conditions to Azure role assignments for blob resources.

    Client libraries: Microsoft provides client libraries for Azure Storage in a variety of languages, including .NET, Java, Node.js, Python, and Go.

    REST API: Microsoft provides a REST API for Azure Storage.

    Storage Explorer: You can access a storage account in Azure using Storage Explorer.

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