Explanation:

Register a new application using the Azure portal
* Sign in to the Azure portal using either a work or school account or a personal Microsoft account.
* If your account gives you access to more than one tenant, select your account in the upper right corner.
Set your portal session to the Azure AD tenant that you want.
* Search for and select Azure Active Directory. Under Manage, select App registrations.
* Select New registration. (Step 1)
* In Register an application, enter a meaningful application name to display to users.
* Specify who can use the application. Select the Azure AD instance. (Step 2)
* Under Redirect URI (optional), select the type of app you're building: Web or Public client (mobile & desktop). Then enter the redirect URI, or reply URL, for your application. (Step 3)
* When finished, select Register.

Explanation:

Azure Instance Metadata Service endpoints "/oauth2/token"
Box
1: http://169.254.169.254/metadata/identity/oauth2/token
Sample request using the Azure Instance Metadata Service (IMDS) endpoint (recommended):
GET 'http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01
&resource=https://management.azure.com/' HTTP/1.1 Metadata: true
Box 2: JsonConvert.DeserializeObject<Dictionary<string,string>>(payload); Deserialized token response; returning access code.
Reference:
https://docs.microsoft.com/en-us/azure/active-directory/managed-identities-azure-resources/how-to-use-vm- token
https://docs.microsoft.com/en-us/azure/service-fabric/how-to-managed-identity-service-fabric-app-code

Explanation:

Explanation:

Box 1, Box 2: TableBatchOperation
Create the batch operation.
TableBatchOperation op = new TableBatchOperation();
Box 3: ExecuteBatch
/ Execute the batch operation.
table.ExecuteBatch(op);
Note: You can insert a batch of entities into a table in one write operation. Some other notes on batch operations:
You can perform updates, deletes, and inserts in the same single batch operation.
A single batch operation can include up to 100 entities.
All entities in a single batch operation must have the same partition key.
While it is possible to perform a query as a batch operation, it must be the only operation in the batch.
References:
https://docs.microsoft.com/en-us/azure/cosmos-db/table-storage-how-to-use-dotnet