A Twitter ________ is a word or phrase preceded by a # symbol

How can you verify the existence of the gateway?

What will be an ideal response?

Which of the following is true about input validation in a client-server architecture, when data integrity is critical to the organization?

A. It should be enforced on the client side only. B. It must be protected by SSL encryption. C. It must rely on the user's knowledge of the application. D. It should be performed on the server side.