A. Long connection

B. Mac and IP address binding

C. Packing filter

D. Port mapping

A. 56128

B. 64128

C. 64168

D. 56168

A. ASPFpass throughserver-mapTable implementation dynamically allows multi-channel protocol data to pass through

B. ASPFMonitor messages during communication

C. ASPFcan be created dynamicallyserver-map

D. Quintupleserver-mapThe table entry implements a similar function to the session table

A. The passive closing party needs to pass an end-of-file to the application, the application closes its connection, and causes the sending of an end-of-fileFIN

B. Sent on passive shutdown sideFINAfter that, the active closing party must send back an acknowledgment and set the acknowledgment sequence number to the received sequence number plus1

C. The active closing party sends the firstFINperform an active shutdown while the other party receives thisFINexecution is closed

D. When passive shutdown receives the firstFIN, it will send back aACK, and randomly generate the confirmation serial number.

A. Windows firewalls can only allow or prohibit preset programs or features and programs installed on the system, and cannot customize the release rules in accordance with protocols or port numbers.

B. Windows firewall not only allows or prohibits preset programs or features and programs installed on the system, but also support to customize the release rules in accordance with protocols or port numbers.

C. If in the process of setting up the Windows firewall, the Internet cannot be accessed, you can quickly restore the firewall to the initial state using the restored default value function.

D. Windows firewall can change the notification rule in the closed state