Exam AZ-305 topic 4 question 21 discussion

A lot of buzzwords in the question... Video files = block blobs... decision is whether premium block blob or general purpose v2. No premium block blob was mentioned so it has to be general purpose v2. Next is highest availability possible, and general purpose v2 supports LRS, ZRS, and GRS... so go with GRS. The expressroute connects directly to the Azure network, bypassing the internet. So private endpoint.

Its Premium Page Blobs + LRS (its the only supported redundancy for PPB) + Private Endpoint Why Premium Page Blobs : If you have a PaaS service for shared media access for collaborative video editing applications, page blobs enable fast access to random locations in the media https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-pageblob-overview?tabs=dotnet#sample-use-cases

For Azure Storage General Purpose v2 (GPv2) accounts, the maximum file size depends on the storage type: Blob Storage (Block Blobs): Supports up to 5 TiB per blob. Azure Files: Maximum file size is 1 TiB per file. Page Blobs (used for Azure VMs): Supports up to 8 TiB per blob.

A. Premium Page Blobs B. ZRS C. Private Endpoint

I will go with below, GPVW2 GRS Private endpoint Premium file share only supports 5 tib size per individual file. Premium page blob is used primarily for azure vm. Hence GPV2 is the only option that makes sense!

Forget the multiple choice options for a minute, if you were actually architecting this Premium block blobs would be first choice, unless you needed GRS, then v2 is only option. This is why I don't like this kind of question - it doesn't help you to be a good architect. Even so, ezfix gives a good explanation based on the options given.

WRONG 1. Standard general-purpose v2 2. Geo-redundant storage (GRS) 3. A private endpoint

Standard general-purpose v2 Geo-redundant storage (GRS) A private endpoint

given answer is contradictory, Premium file share do not support GRS - MS doc - https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview Premium file we when we have requirement of performance intensive storage https://learn.microsoft.com/en-us/training/modules/describe-azure-storage-services/2-accounts answer should be - Standard V2 GRS Private links

. In addition to using virtual disks for Azure IaaS VMs, page blobs also enable PaaS and DBaaS scenarios such as Azure SQL DB service, which currently uses page blobs for storing SQL data, enabling fast random read-write operations for the database. Another example would be if you have a PaaS service for shared media access for collaborative video editing applications, page blobs enable fast access to random locations in the media. It also enables fast and efficient editing and merging of the same media by multiple users. so premium page blo lRS https://learn.microsoft.com/en-us/azure/storage/common/storage-redundancy?toc=%2Fazure%2Fstorage%2Fblobs%2Ftoc.json&bc=%2Fazure%2Fstorage%2Fblobs%2Fbreadcrumb%2Ftoc.json private endpoint

V2+GRS+PE Storage account type: Standard general-purpose v2: This supports large blob storage and is optimized for large files, such as video files of up to 7 TB. Data redundancy: Geo-redundant storage (GRS): Offers the highest availability and durability by replicating data to a secondary region. Networking: A private endpoint: Ensures secure and direct connectivity to the storage account over ExpressRoute, meeting the requirement for secure upload from the on-premises network.

The maximum file size in premium file share is 4 TiB in both standard and premium editions, so NO https://learn.microsoft.com/en-us/azure/storage/files/storage-files-scale-targets The maximum file size in premium page blob is 8TiB, which is fine https://learn.microsoft.com/en-us/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs The maximum blob size in standard storage account is around 190 TiB, which is fine https://learn.microsoft.com/en-us/azure/storage/blobs/scalability-targets But only standard storage redundancy is offered by GRS. For premium version it is ZRS max. So I would go for Standard General Purpose v2 which is for large files so I think it is optimized for this purpose. I think it is possible to use premium page blob but max redundancy is ZRS which does not meet the requirement of "Provides the highest possible availability" Correct me if I am wrong...

Did we ever get a final answer the description does not match the answers

Storage-optimised video files = Premium Page Blobs The highest availability that can be achieved by choosing Premium Page Blobs is LRS. However, the question only asks to use the highest availability *possible*. Correct for Private Endpoint.

The given answer is NOT correct - my take on it Box 1: Premium Page blobs https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-pageblob-overview Box2: LRS as this is the Max redundancy option available - check table below https://learn.microsoft.com/en-us/azure/storage/common/storage-redundancy Box 3: Private endpoint since we have ER and ER to be utilized

Storage account type: - Premium page blobs. This type supports large file sizes and is optimized for large video files https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blobs-introduction Data redundancy: - Geo-redundant storage (GRS). This option provides the highest availability possible by replicating data to a secondary region. https://learn.microsoft.com/en-us/azure/storage/common/storage-redundancy Networking: - A private endpoint. This ensures the files from the on-premises network are uploaded using ExpressRoute, providing a secure and direct connection to the storage account. https://learn.microsoft.com/en-us/azure/private-link/private-endpoint-overview

Premium file share limit - 100 TB (https://learn.microsoft.com/en-us/azure/storage/files/storage-files-scale-targets) ZRS is supported for premium Azure file shares through the FileStorage storage account kind. private endpoint through Express Route