Can we change the instance type of a running EC2 instance?

No, you cannot directly change the instance type while it is running; you must stop the instance first.

Explanation:

EC2 instance type determines CPU, memory, storage, and network capacity.

To change the instance type:

Stop the instance (data on instance store volumes will be lost; EBS volumes are preserved).

Change the instance type in the AWS Management Console, CLI, or API.

Start the instance again.

which AWS service provide the access to Windows EC2 Instance

You can access Windows EC2 instances using RDP or AWS Systems Manager Session Manager

what are the types of websites ?

Websites can be static or dynamic, and their types depend on purpose: business, e-commerce, blogs, social media, education, government, or portfolio.

what is the IIS server default port

The default port for IIS web server HTTP traffic is port 80, and HTTPS traffic is port 443.

what is webserver

A web server is a computer or software system that delivers web content (like HTML pages, images, videos, or applications) to users over the Internet using the HTTP or HTTPS protocols.