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1.
When using digital certificates for authentication in IPsec VPN, it should adopt IKE main mode negotiation and validation of certificate is completed in the 5th 6th packet of the packet exchange.
2.
In defense FIN / RST Flood attack method, conversation is checked. The workflow is when the FIN / RST packet rate exceeds the threshold, discarded packets, and then start the conversation check.
3.
The anti-DDoS device can implement traffic blocking or limiting to defend against attacks if the service learning function discovers that certain services do not run on the network or the service traffic volume is small.
4.
An enterprise network flow is shown below. Server A can not access the server B, administrators troubleshoot and found that server A can access the firewall A, but can not access the firewall B What method will administrators use to troubleshoot this problem?
5.
As shown in Figure Eth-Trunk functionality with binding, if the need is to implement each interfaceby-packet load balancing feature, you need to run which of the following configuration commands?
6.
Hot Standby networking environment is shown in Figure 1 and 2 backup group joined VGMP management group, USG_A main equipment, USG_B as a backup device.
When USG_A is in failed state, such as power failure, this time USG_B state switched from Slave to Master.
When USG_A firewall recovers, it switches back to its state Master, and USG_B status remains as Master.
What has caused this phenomenon?
When USG_A is in failed state, such as power failure, this time USG_B state switched from Slave to Master.
When USG_A firewall recovers, it switches back to its state Master, and USG_B status remains as Master.
What has caused this phenomenon?
7.
In the standby link IPsec backup application scenarios, which of the following ways is used by the standby link switch?
8.
Administrators can create a vfw1 and vfw2 with multiple instances to provide security services for firms A and B on the root firewall. It can be configured between vfw1 regional security and safety vfw2 forwarding policy.
9.
Static fingerprint filtering function is configured through static fingerprints. Fingerprints on the packets hit the appropriate treatment, and thus attack traffic defense. General Anti-DDos device can capture function, first grab the attack packets, and then extract the functionality through fingerprint and fingerprint information input to the static filter.
10.
According to the victim host capture shown in Figure, What type of attack is this?