You need to recommend a solution to meet the network requirement.
What should you recommend?
Application Gateway operates as an application delivery controller and offers SSL termination, cookie-based session affinity, round-robin load distribution, content-based routing, ability to host multiple websites and security enhancements.
Scenario: Networking requirements
All Internet traffic initiated from the servers in Azure must be routed through the local network firewalls and content filters.
B: If you need basic network level access control (based on IP address and the TCP or UDP protocols), you can use Network Security Groups (NSGs). An NSG is a basic, stateful, packet filtering firewall, and it enables you to control access based on a 5-tuple.