Final answer:
The most secure way to allow the application to access service endpoints in the same region is by using VNet service endpoints.
Step-by-step explanation:
The most secure way to allow the application to access service endpoints in the same region is by using VNet service endpoints.
VNet service endpoints enable you to connect privately to services over an Azure Virtual Network (VNet) connection, without needing to expose them to the public internet. This ensures that the communication between the application and the service endpoints remains secure.
By configuring VNet service endpoints for the relevant service endpoints in the same region, you can enforce network traffic to flow through the VNet and prevent unauthorized access.