Draw a hierarchy for the components you might find in a graphical user interface. Note that some components can trigger actions. Some components may have graphics associated with them. Some components can hold other components.

A ________ occurs when an action is completed on any given object. The action could be, for example, a simple click of the mouse or entering information into a specific field

A) modal message B) submacro C) database event D) command

Which of the following is true about symmetric encryption?

A. It uses a secret key to encrypt and decrypt. B. It uses a private and public key. C. It is also known as public key encryption. D. It requires four keys to hold a conversation.