Crucial Exams

Microsoft Azure Developer Associate AZ-204 Practice Question

You are building an ASP.NET Core web app that authenticates to a service by using a client certificate. The certificate is stored in an Azure Key Vault named ContosoVault and was imported as an exportable PFX file. At start-up you must load the certificate with its private key into an X509Certificate2 object in memory. A DefaultAzureCredential instance named credential is already available. Which C# approach should you implement?

  • Instantiate a CertificateClient, call GetCertificateAsync("clientCert"), and pass the returned Certificate.Content bytes to the X509Certificate2 constructor.

  • Instantiate a SecretClient with the vault URI and credential, call GetSecretAsync("clientCert"), convert the Value to byte[], then create the X509Certificate2 object from the byte array.

  • Use Azure CLI inside the app to run az keyvault certificate download and load the downloaded file into an X509Certificate2 object.

  • Instantiate a KeyClient, call GetKeyAsync("clientCert"), extract the key material, and build the X509Certificate2 object from it.

Microsoft Azure Developer Associate AZ-204
Implement Azure security
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