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AZ-305 Exam - Question 72


HOTSPOT -

You need to design a storage solution for an app that will store large amounts of frequently used data. The solution must meet the following requirements:

✑ Maximize data throughput.

✑ Prevent the modification of data for one year.

✑ Minimize latency for read and write operations.

Which Azure Storage account type and storage service should you recommend? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

Hot Area:

Exam AZ-305 Question 72
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Correct Answer:
Exam AZ-305 Question 72

Box 1: BlockBlobStorage -

Block Blob is a premium storage account type for block blobs and append blobs. Recommended for scenarios with high transactions rates, or scenarios that use smaller objects or require consistently low storage latency.

Box 2: Blob -

The Archive tier is an offline tier for storing blob data that is rarely accessed. The Archive tier offers the lowest storage costs, but higher data retrieval costs and latency compared to the online tiers (Hot and Cool). Data must remain in the Archive tier for at least 180 days or be subject to an early deletion charge.

Reference:

https://docs.microsoft.com/en-us/azure/storage/blobs/archive-blob

Discussion

32 comments
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albertozgz
Dec 21, 2021

The solution is CORRECT, because BlockBlobStorage provide a very low latency(x40) (Read and Write) and Throughput (x5) BECAUSE: One big file is splitted in "blobs" that are processed in parallel (for read and write) https://azure.microsoft.com/en-us/blog/premium-block-blob-storage-a-new-level-of-performance/

Asten
Jan 19, 2023

Yes. the key word is maximize data throughput

FrancisFerreira
Mar 27, 2022

Correct answer, but given reasoning for Archive Tier is wrong. You achieve the immutability requirement through a Time-Based Retention Policy at the container-level. That will prevent write and delete operations for all blobs in the container for a given period (in this case, 1 year).

_fvt
Feb 16, 2023

Solution is Correct. You create a Storage Account (not StorageV2 something), then you chose the performance: - Standard: type will be General Purpose v2 - Premium: 3 choices of type - BlockBlob - FilesShares - PageBlobs So here we should choice premium block blob type, with blob https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview?toc=%2Fazure%2Fstorage%2Fblobs%2Ftoc.json

yonie
Apr 25, 2023

that was helpful thanks

InvalidNickname
Aug 6, 2023

Got this on Aug 5th, 2023.

NotMeAnyWay
Jul 11, 2023

Based on your requirements, the following options should be chosen: 1. Storage account type: BlockBlobStorage. This storage account type offers high-performance block blobs and append blobs. It provides the highest throughput for object storage in Azure, which will help maximize data throughput. Block blobs are ideal for storing text and binary data, such as documents and media files. 2. Storage service: Blob. Blob storage is optimized for storing massive amounts of unstructured data, and it can handle frequently accessed data very well. Also, Azure Blob Storage supports object-level immutability policies, which can prevent the modification of data for a certain period, satisfying your requirement to prevent data modification for one year.

Backy
Nov 25, 2022

The first dropdown does not make sense. BlockBlobStorage and FileStorage are examples of "StorageV2 with Premium performance", so if you want to select Blobs then how do you decide between BlockBlobStorage and "StorageV2 with Premium performance". It is like deciding between Ferrari and car.

wwwmmm
Dec 30, 2022

I think v2 is only for standard? And premium doesn't refer to v2? And BlockBlob is only available in premium (premium has blockblob, pageblob or file blob), so even though the options are badly worded, but seems correct.

rtony69
Jan 12, 2023

The answer should be "StorageV2 with Premium performance" I don't think blockblobstorage is an example of "StorageV2 with Premium performance" as it is available in standard as well.

rtony69
Jan 12, 2023

ignore the above reply... it's literally called as premium block blob. My bad. https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview#types-of-storage-accounts

rtony69
Jan 12, 2023

ignore the above reply... it's literally called as premium block blob. My bad. https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview#types-of-storage-accounts

Ghoshy
Dec 29, 2022

Exam Question 12/28/2022

dimsok
Jan 23, 2023

I am a bit confused because storageV2 premium includes blockblob, isnt it?

sawanti
Aug 16, 2023

Yeah, it also always confuses me... But I get it finally. StorageV2 with Premium performance doesn't even exists. If we use Premium performance, we DON'T have StorageV2 as a storage kind. If we use standard StorageV2, it will be then just called StorageV2. StorageV2 with Premium/Standard performance should NOT be even an option as above: Standard is only option for StorageV2; Using Premium Performance don't uses StorageV2 at all

sawanti
Aug 16, 2023

I have tested that in the Azure and I am still confused.. Premium Block Blob: BlockBlobStorage Kind Premium File Share: FileStorage Kind Premium Page Blob: StorageV2 (???????????) Standard: StorageV2

andersonslls
Jan 21, 2024

I am also confused.

andersonslls
Jan 21, 2024

I am also confused.

sawanti
Aug 16, 2023

I have tested that in the Azure and I am still confused.. Premium Block Blob: BlockBlobStorage Kind Premium File Share: FileStorage Kind Premium Page Blob: StorageV2 (???????????) Standard: StorageV2

andersonslls
Jan 21, 2024

I am also confused.

andersonslls
Jan 21, 2024

I am also confused.

zellck
Feb 18, 2023

1. BlockBlobStorage 2. Blob https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-block-blob-premium Premium block blob storage accounts make data available via high-performance hardware. Data is stored on solid-state drives (SSDs) which are optimized for low latency. SSDs provide higher throughput compared to traditional hard drives. File transfer is much faster because data is stored on instantly accessible memory chips. All parts of a drive accessible at once. By contrast, the performance of a hard disk drive (HDD) depends on the proximity of data to the read/write heads.

zellck
Feb 18, 2023

https://learn.microsoft.com/en-us/azure/storage/blobs/immutable-storage-overview#supported-account-configurations Immutable storage for Azure Blob Storage enables users to store business-critical data in a WORM (Write Once, Read Many) state. While in a WORM state, data cannot be modified or deleted for a user-specified interval. By configuring immutability policies for blob data, you can protect your data from overwrites and deletes.

randy0077
Oct 20, 2023

correct ans: Azure StorageV2 with Premium performance(immutable storage: no data modification for 1 year) blob storage

TomdeBom
Feb 14, 2024

Azure StorageV2 only supports Standard performance: https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blobs-introduction#storage-accounts Immutable storage is supported by both BlockBlobStorage and StorageV2: https://learn.microsoft.com/en-us/azure/storage/blobs/immutable-storage-overview#supported-account-configurations

chair123
Mar 9, 2024

True, I have tried to create storage account and there is only two options: 1- Standard (General Purpose V2) 2- Premium (BlockBlob, FileShare or PageBlob) there is no premium storageV2!

chair123
Mar 9, 2024

True, I have tried to create storage account and there is only two options: 1- Standard (General Purpose V2) 2- Premium (BlockBlob, FileShare or PageBlob) there is no premium storageV2!

kenobiD
Dec 9, 2021

the answer is correct but the description as to why is wrong. you want to use immutability to lock out changes to any data for a year https://docs.microsoft.com/en-gb/azure/storage/blobs/immutable-storage-overview

Shadow983
Dec 14, 2021

Premium should provide better performance. Why the first answer not choose Premium?

Shadow983
Dec 17, 2021

I was wrong. The answer is correct

Shadow983
Dec 17, 2021

I was wrong. The answer is correct

hertino
Apr 9, 2022

In my exam, 9 april 22, 817/1000, I chose this answer

kenobiD
Dec 9, 2021

Archive doesn't really do anything other than stop you accessing it quickly so that part of the description isn't necessarily accurate

nzb4u
Feb 23, 2022

https://docs.microsoft.com/en-us/azure/storage/blobs/immutable-storage-overview Added link to data protection and previous comment. Enable version-level immutability support Allows you to set time-based retention policy on the account-level that will apply to all blob versions. Enable this feature to set a default policy at the account level. Without enabling this, you can still set a default policy at the container level or set policies for specific blob versions. Versioning is required for this property to be enabled.

Justin0020
Mar 11, 2022

Was in my exam om March. 10

totalz
Feb 10, 2023

Was there such a thing called "StorageV2 with Premium performance"? Is this question sort of outdated?

sieira
Jul 23, 2023

But if one of the requirements is to prevent the modification of data for one year, I think the correct choice would be a StorageV2 with standard performance because blob immutability is only available in General Purpose V2 storage account

marcellov
Sep 19, 2023

No, blob immutability is also available in Premium block blob (BlockBlobStorate in the question). https://learn.microsoft.com/en-us/azure/storage/blobs/immutable-storage-overview#supported-account-configurations

Ivanvazovv
Feb 6, 2023

When you try to create a new storage account, there are two options : Standard and Premium. When you click on Premium, there are three options - Block Blobs, Page Blobs and File Shares. We need Block Blobs to satisfy the first and last requirements. For the second requirement we need Blob for the retention ability.

Shadow983
Dec 14, 2021

The answer should be Premium and blob. For "maximize data throughput" and "minimize latency" without considering cost, choose premium: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-block-blob-premium For "prevent the modification of data for one year", choose the blob with immutable storage: https://docs.microsoft.com/en-gb/azure/storage/blobs/immutable-storage-overview

Shadow983
Dec 17, 2021

I got it. You need to choose Premium first, then you will enable to select block blob. Block blob is the only Premium type that supporting immutable storage. So the first answer is Block Blob

s_boyz2001
Dec 29, 2021

Answer is Correct because its asking account type there are 3 account types: block blob, file share, page blob Performance: standard and Premium Premium account type: block blob

eduardomoralles
Dec 16, 2022

Here answer options makes confusion between account performance and premium account type: #1- Premium Block Blobs #2- OK https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview#types-of-storage-accounts

OPT_001122
Jan 28, 2023

BlockBlobStorage Blob Correct answer Thanks to all who have mentioned the exam dates

[Removed]
Nov 11, 2024

CORRECT

myipa
Dec 13, 2021

Thing to remember StorageV2 Premium == Premium Page Blob. You can test by creating storage account in legacy mode and select Premium+StorageV2. In the container you only get the option to upload page blob. Additional note Premium Page Blob is private access only

nzb4u
Feb 23, 2022

The requirement for 1 year is implemented by using soft delete. Not by using archive tier. https://docs.microsoft.com/en-us/azure/storage/blobs/soft-delete-blob-overview. see page data protection when creating the storage account. Indicated solution is correct. Blockblobs & blob

JayBee65
Jun 24, 2022

No, you are being asked to stop the files being changed, not allow recovery from deletion.

jellybiscuit
Sep 21, 2022

It's neither. You should use a time-based retention policy.

Gor
May 24, 2022

Correct Answers: BlockBlobStorage (Immutable blob policies) Blob

princessgalz
Jul 14, 2022

Block blob storage and Blob type

paulb2b
Aug 9, 2022

service type : correct service : correct

marco25
Sep 9, 2022

confused. how you allow write operation on one hand then dont allow modification on the other hand

[Removed]
Oct 17, 2022

https://docs.microsoft.com/en-us/azure/storage/blobs/immutable-storage-overview

Lazylinux
Apr 29, 2024

Given answer is correct

23169fd
Jun 21, 2024

The given answer is correct. BlockBlobStorage is the optimal storage account type because it is designed to handle large-scale, high-throughput operations and supports features that prevent data modification. Blob storage service is the right choice for storing large amounts of unstructured data and minimizing latency.

d717098
Apr 19, 2025

Another question designed to confuse you / obfuscate what Azure services actually offer. The storage account types are not listed correctly - why design questions this way, what is the purpose, other than to trip you up? Refer to the table here for the type of storage accounts supported in Azure: https://learn.microsoft.com/en-us/azure/storage/common/storage-account-overview#types-of-storage-accounts