What types of threats does Alibaba Cloud's Anti-DDoS service protect against?

Alibaba Cloud's Anti-DDoS service is specifically designed to protect against a wide range of Distributed Denial of Service (DDoS) attacks, which include layer 3 and layer 4 attacks, as well as application layer attacks.

Layer 3 and layer 4 attacks generally involve overwhelming a network or server with a massive volume of traffic or connection requests, exploiting weaknesses in the network protocol stack (such as TCP/UDP). Application layer attacks, often referred to as layer 7 attacks, target the application itself, potentially disrupting services by sending seemingly legitimate requests that consume significant server resources.

By covering layer 3, layer 4, and application layer attacks, Alibaba Cloud's Anti-DDoS service provides a comprehensive defense mechanism that ensures continuity of service and protects against various types of DDoS threats. This multi-layered protection is crucial for maintaining the availability and reliability of applications hosted on Alibaba Cloud infrastructure.

The other options, such as protecting against physical attacks on data centers or insider threats and data breaches, fall outside the scope of what DDoS protection addresses and align with different security domains and measures. While these threats are certainly significant, they are not directly mitigated by Anti-DDoS services, which focus specifically on D