List the three types of pricing models in EC2.

1. On - demand instance
2. Reserved instance
3. Capacity Reservation

what is the port number of HTTP and HTTPS protocols ?

HTTP' s - 80
HTTPS' s - 443

What is IIS ?

Internet Information Service, It is a Microsoft's web server software. It allows you to host websites and web applications on a Windows machine.

What AWS component helps reduce latency for users worldwide?

What does low latency mean in cloud computing?