A.FALSE

B.TRUE

A.Worm

B.Viruses

C.Trojan horse

D.Backdoor

A.True

B.False

A.When data flows between different security zones, the security check of the device will be triggered and corresponding security policies will be implemented.

B.The firewall has four security zones by default, and the priorities of these four security zones do not support modification.

C.The firewall can create two security zones with the same priority

D.A firewall can have up to 12 security zones

A.The ACL method defines the IPsec flow of interest. The permit keyword in the ACL rule indicates that the matching traffic requires IPsec protection, while the deny keyword indicates that the matching traffic does not need IPsec protection.

B.Routing mode defines IPsec interesting flows, which increases the complexity of IPsec configuration.

C.The advantage of the ACL method of defining interesting flows is that packets can be filtered based on IP address, port information, protocol type and other information.

D.IPsec interesting flows can be defined through ACL and routing methods