Home » Microsoft » AZ-305 » What should you use?
You plan to migrate data to Azure.
The IT department at your company identifies the following requirements:
The storage must support 1 PB of data.
The data must be stored in blob storage.
The storage must support three levels of subfolders.
The storage must support access control lists (ACLs).
You need to meet the requirements.
What should you use?
A. a premium storage account that is configured for block blobs
B. a general purpose v2 storage account that has hierarchical namespace enabled
C. a premium storage account that is configured for page blobs
D. a premium storage account that is configured for files shares and supports large file shares
Correct Answer: B
Explanation/Reference:
Explanation:
Microsoft recommends that you use a GPv2 storage account for most scenarios. It supports up to 5 PB, and blob storage including Data Lake storage.
Note: A key mechanism that allows Azure Data Lake Storage Gen2 to provide file system performance at object storage scale and prices is the addition of a hierarchical namespace. This allows the collection of objects/files within an account to be organized into a hierarchy of directories and nested subdirectories in the same way that the file system on your computer is organized. With a hierarchical namespace enabled, a storage account becomes capable of providing the scalability and cost-effectiveness of object storage, with file system semantics that are familiar to analytics engines and frameworks.
Reference:
https://docs.microsoft.com/en-us/azure/storage/common/storage-account-overview
https://docs.microsoft.com/en-us/azure/storage/blobs/data-lake-storage-namespace
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