Which type of programming should you use to determine whether the room is still available when the request is made?

You are writing a Web application that processes room reservation requests. You need to verify that the room that a guest has selected is not already reserved by another guest.

Which type of programming should you use to determine whether the room is still available when the request is made?
A . client-side
B . server-side
C . multithreaded
D . batch processing

Answer: B

Explanation:

For room availability we need to check a database located on a server.