Which of the following statements about front door attack is true?

In this type of attack, the hacker sends more traffic to a network address than the buffer can handle.

This type of attack uses a dictionary of common words to find out the password of a user.

This type of attack is used to sniff passwords or information from a legitimate transaction to be used for the hacker's advantage.

In this type of attack, the hacker has all the correct information to get into a system and does not have to perform any additional task to get that information.