AZ-305 Question #145: Real Exam Question with Answer & Explanation

Question

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?

Options

• Aa premium storage account that is configured for block blobs
• Ba general purpose v2 storage account that has hierarchical namespace enabled
• Ca premium storage account that is configured for page blobs
• Da premium storage account that is configured for files shares and supports large file shares

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. 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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