Layer7 (or application layer) is one of the seven layers of the OSI (Open Systems Interconnection) model. I.e. these are smtp applications, web server, mysql, etc.
DDoS (Distributed Denial of Service) attack is a type of attack which aims to create an overload on a server or network, making it unavailable for legitimate traffic. In this case, the attacker uses multiple computers or devices to generate a large number of requests to the target server.
How does the attack happen? Many req