“…9 Another characteristic is referred that DDoS is target unresponsive attack, since attacked nodes predict the attacker node, thereby it enormously affects cloud computing services. 6,10,11 Moreover, DDoS attacks are many-to-one form of DoS attacks, and it is sophisticated in which attacker overcomes the victim resources through sending streams of packets to victim. Furthermore, DDoS attack mainly includes size types, namely degree attack rate, adopted model, network scanning approach, degree of automation, degree of impact and propagation model.…”