H12-721 Exam Dumps : Huawei Certified ICT Professional - Constructing Infrastructure of Security Network

The ip-link principle is to continuously send ICMP packets or ARP request packets to the specified destination address, and check whether the ICMP echo reply or ARP reply packet of the destination IP response can be received.

The server health check mechanism is enabled on the USG firewall of an enterprise to detect the running status of the back-end real server (the three servers are Server A, Server B, and Server C). When the USG fails to receive the response from Server B multiple times. When the message is received, Server B will be disabled and the traffic will be distributed to other servers according to the configured policy.

The static fingerprint filtering function is to defend the attack traffic by configuring a static fingerprint to process the packets that hit the fingerprint. Generally, the anti-DDoS device capture function can be used to input fingerprint information to static fingerprint filtering.