Answer:
Denial of Service attack
Step-by-step explanation:
Denial of service is a type of attack on computer systems in which a particular system is targeted and flooded with traffic from multiple systems, thus causing an overload of the attacked system, and an eventual crash. The aim of the perpetrators of this attack is to prevent the rightful owners of the system from gaining access to it.
The above described attack is a Denial of service attack because;
1. the attack came from multiple computers
2. the attacked server experienced an overload most likely caused because it was overwhelmed with traffic.