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Exam AZ-305 topic 4 question 21 discussion

Actual exam question from Microsoft's AZ-305
Question #: 21
Topic #: 4
[All AZ-305 Questions]

HOTSPOT -
You are designing an application that will use Azure Linux virtual machines to analyze video files. The files will be uploaded from corporate offices that connect to
Azure by using ExpressRoute.
You plan to provision an Azure Storage account to host the files.
You need to ensure that the storage account meets the following requirements:
✑ Supports video files of up to 7 TB
✑ Provides the highest availability possible
✑ Ensures that storage is optimized for the large video files
✑ Ensures that files from the on-premises network are uploaded by using ExpressRoute
How should you configure the storage account? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Show Suggested Answer Hide Answer
Suggested Answer:
Box 1: Premium page blobs -
The maximum size for a page blob is 8 TiB.
Incorrect:
Not Premium file shares:
Max file size for Standard and Premium file shares are 4 TB.
Box 2: Geo-redundant storage (GRS)
GRS provides additional redundancy for data storage compared to LRS or ZRS.

Box 3: A private endpoint -
Azure Private Link allows you to securely link Azure PaaS services to your virtual network using private endpoints. For many services, you just set up an endpoint per resource. This means you can connect your on-premises or multi-cloud servers with Azure Arc and send all traffic over an Azure ExpressRoute or site-to-site
VPN connection instead of using public networks.
Reference:
https://docs.microsoft.com/en-us/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs https://docs.microsoft.com/en-us/azure/storage/files/storage-files-scale-targets https://docs.microsoft.com/en-us/azure/azure-arc/servers/private-link-security

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ezfix
Highly Voted 2 years, 2 months ago
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.
upvoted 108 times
JaffaDaffa
2 years, 1 month ago
https://learn.microsoft.com/en-us/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs
upvoted 3 times
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ziggy1117
12 months ago
General purpose v2 is NOT Correct as the single file limit is only 4TB https://learn.microsoft.com/en-us/azure/storage/files/storage-files-scale-targets#file-scale-targets So the answers are: A. Premium Page Blobs are up to 8TB in size. https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-pageblob-overview B. ZRS. This is the highest redundancy of premium page blobs https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview#types-of-storage-accounts C. Private Endpoint
upvoted 15 times
Muffay
11 months ago
The 4 TB limit is for file shares, not for blobs. > Block blobs can store up to about 190.7 TiB. https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blobs-introduction#blobs
upvoted 7 times
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JaffaDaffa
2 years, 1 month ago
https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-pageblob-overview?tabs=dotnet Page blobs support video files.
upvoted 5 times
vali6969
1 year, 5 months ago
page blobs are optimized for small files and high IOPS transactions (even if it supports files up to 8To) Moreover the max availability is LRS max. So for the same , let's choose GPv2 (with blob storage not mentioned) and GRS
upvoted 2 times
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Balaji_c_s
Highly Voted 2 years, 2 months ago
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
upvoted 39 times
sKaiNL
2 years, 2 months ago
The explanation says Premium Page Blobs is correct. But Premium File Shares is selected in the answer area. Please correct one of them.
upvoted 14 times
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ckyap
2 years ago
Not sure if Page block is a good option here, because it is optimized for OS disk/Database. https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-pageblob-overview?tabs=dotnet#sample-use-cases:~:text=Page%20blobs%20are%20a%20collection%20of%20512%2Dbyte%20pages%2C%20which%20provide%20the%20ability%20to%20read/write%20arbitrary%20ranges%20of%20bytes.%20Hence%2C%20page%20blobs%20are%20ideal%20for%20storing%20index%2Dbased%20and%20sparse%20data%20structures%20like%20OS%20and%20data%20disks%20for%20Virtual%20Machines%20and%20Databases.
upvoted 3 times
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sondrex
2 years, 1 month ago
your answer is not correct because LRS not support ( Provides the highest availability possible) Correct answer general v2-GRS-PE
upvoted 11 times
pkkalra
1 year, 9 months ago
you have to choose the right storage (page blob) and then choose highest available redundancy. No point in storing blobs which VMs can't load to analyse (it should be able to read blob in chunks to analyse the video which is the requirement here).
upvoted 2 times
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SeMo0o0o0o
Most Recent 3 weeks ago
WRONG 1. Standard general-purpose v2 2. Geo-redundant storage (GRS) 3. A private endpoint
upvoted 2 times
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Teerawee
2 months, 3 weeks ago
Standard general-purpose v2 Geo-redundant storage (GRS) A private endpoint
upvoted 3 times
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raj29oct
2 months, 4 weeks ago
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
upvoted 2 times
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KarimaMaf
3 months, 1 week ago
. 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
upvoted 1 times
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23169fd
5 months, 1 week ago
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.
upvoted 5 times
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profesorklaus
5 months, 3 weeks ago
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...
upvoted 2 times
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Jas70
6 months, 1 week ago
Did we ever get a final answer the description does not match the answers
upvoted 1 times
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MaxMax65
6 months, 2 weeks ago
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.
upvoted 2 times
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Lazylinux
7 months, 1 week ago
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
upvoted 2 times
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LGWJ12
8 months ago
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
upvoted 1 times
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rishisoft1
8 months, 2 weeks ago
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
upvoted 2 times
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varinder82
8 months, 2 weeks ago
Final Answer: 1. Premium File Share 2. ZRS 3. Private Link
upvoted 5 times
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prshntdxt7
8 months, 2 weeks ago
Page Blobs, LRS, Private endpoint. these are correct options.
upvoted 3 times
prshntdxt7
8 months, 2 weeks ago
*edit: Page Blobs support upto 8TB, and also support both LRS and ZRS. hence, answer should be 'Premium Page Blobs', 'ZRS': since it's an option but more expensive than LRS, but there's no requirement given for 'cost' minimization in the question and hence going with ZRS. Also you need 'Private Endpoint' connectivity here. ANSWER: Premium Page Blobs, ZRS, Private Enpoint. refer: https://azure.microsoft.com/en-us/pricing/details/storage/page-blobs/
upvoted 2 times
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Fidel_104
9 months ago
Got this on today's exam (March of 2024). I selected gp v2/GRS/private endpoint for this question, and passed the exam with 870. Honestly though, even after going through the the docs and the discussion, I still don't know the answer for sure... and I guess now I will also never knew. Still, I believe I might be able to lead a happy life.
upvoted 7 times
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177c705
9 months, 1 week ago
Elecktrus knows it: Elecktrus 5 months, 1 week ago I don't understand all the confusion that is being created with the answers to this question. It's very simple, you just have to see the requirements that Microsoft asks for in the correct order: 1- Provides the highest availability possible --> GRS. Ok, now, what kind of storage support GRS? --> Premium Files, no; Premium Page, no; Standar V2 Gen, yes --> Standar V2 Gen support V2 Gen files up 7 TB? --> yes Ensures that storage is optimized for the large video files --> yes Well, is clear then: Box1 = Standar V2 Gen Box1 = GRS Box3 = Private Enpoind (because we must use Express Route)
upvoted 5 times
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