Which of the following defines the Denial of Service attack?
1
is a technique by which an attacker sends Address Resolution Protocol messages onto a local area network.
2
is a form of computer security hacking in which corrupt Domain Name System data is introduced into the DNS resolver's cache, causing the name server to return an incorrect result record.
3
is an attack where the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.
4
is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet.