You are designing a distributed application for Azure.
The application must securely integrate with on-premises servers.
You need to recommend a method of enabling Internet Protocol security (IPsec)-protected
connections between on-premises servers and the distributed application.
What should you recommend?
A.
Azure Access Control
B.
Azure Content Delivery Network (CDN)
C.
Azure Service Bus
D.
Azure Site-to-Site VPN
Explanation:
IPsec can be used on Azure Site-to-Site VPN connections. Distributed applications can used the IPSec
VPN connections to communicate.About Virtual Network Secure Cross-Premises Connectivity
https://msdn.microsoft.com/en-us/library/azure/dn133798.aspx