Denial of Service (DoS) attacks are malicious activities aimed at disrupting the availability of a computer system or network, rendering it inaccessible to legitimate users. There are several common forms of DoS attacks, each targeting different aspects of a system. Some of the most prevalent forms of DoS attacks are:

Flooding Attacks: Flooding attacks overwhelm a target system with a high volume of traffic, consuming its resources and causing it to become unresponsive. Two common types of flooding attacks are:

a) UDP Flood: This attack floods the target with a large number of User Datagram Protocol (UDP) packets, often using spoofed source IP addresses. The target system becomes overwhelmed by the sheer volume of incoming packets and cannot respond to legitimate requests.

b) SYN Flood: In this attack, the attacker floods the target with a flood of SYN requests, exhausting the system's resources and preventing it from establishing new connections with legitimate users.