HOTSPOT -
You are building an application that stores sensitive customer data in Azure Blob storage. The data must be encrypted with a key that is unique for each customer.
If the encryption key has been corrupted it must not be used for encryption.
You need to ensure that the blob is encrypted.
How should you complete the code segment? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
 
















 

Suggested Answer: 
    

Box 1: CustomerProvidedKey(key)
The data must be encrypted with a key that is unique for each customer.
Sample code:
async static Task UploadBlobWithClientKey(Uri blobUri,
Stream data,
byte[] key,
string keySha256)
{
// Create a new customer-provided key.
// Key must be AES-256.
var cpk = new CustomerProvidedKey(key);
Box 2: Encryption -
CustomerProvidedKey.EncryptionKey Property
Sample code continued:
// Check the key's encryption hash.
if (cpk.EncryptionKeyHash != keySha256)
{
throw new InvalidOperationException("The encryption key is corrupted.");
}
Box 3: CustomerProvidedKey -
Sample code continued;
// Specify the customer-provided key on the options for the client.
BlobClientOptions options = new BlobClientOptions()
{
CustomerProvidedKey = cpk -
};
// Create the client object with options specified.
BlobClient blobClient = new BlobClient(
blobUri,
new DefaultAzureCredential(),
options);
Incorrect:
* Version - Gets the BlobClientOptions.ServiceVersion of the service API used when making requests.
Transport - The HttpPipelineTransport to be used for this client.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-customer-provided-key

This question is in AZ-204: Developing Solutions for Microsoft Azure Exam
For getting Microsoft Azure Developer Associate Certificate


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