The SIP protocol uses SDP messages to establish a session, and the SDP message contains a remote address or multicast address

Which of the following options belongs to the Layer 2 VPN technology?

Which of the following does not belong to the classification of cybersecurity incidents?

Security policy conditions can be divided into multiple fields, such as source address, destination address, source port, destination port, etc. These fields have an "and" relationship, that is, only the information in the message and all fields If they all match, it is considered to have hit this strategy.

After the company ' s network administrator has configured dual-system hot backup, he can view VRRP and other information through commands, and get the following information
HRP_M<FWA>
Gigabit Ethernet 0/0/3 Virtual Router 1
State: Master
Virtual IP: 10.3.0.3
Master IP: 10.3.0.1
Priority Run: 120
Priority Config: 100
Master Priority: 120
Preempt: YES Delay Time: 0s
Timer Run: 60s
Timer Config: 60s
Auth type: NONE
Virtual MAC: 0000-5e00-0101
Check TIL: YES
Config type: vgmp Vrrp
Backup-forward : disabled
Create time : 2020-03-17 17:35:54UTC+08:02
Last change time: 2020-03-22 16:01:56 UTC+08:02
Type in the blank space to view the command is _____