About the description of firewall active-standby, which of the following is correct? (Multiple Choice)

• A.VGMP is to ensure all VRRP backup groups' consistency of switching
• B.It requires the state of all the VRRP backup groups in the same VGMP management group on the same firewall should be consistent.
• C.When a plurality of regions on the firewall need to provide dual-machine backup function, you need to configure multiple VRRP backup groups on the firewall.
• D.The firewall active-standby requires the information such as the session table, MAC table, routing table and so on synchronous backup between primary devices and slave devices.

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According to the protection object, the firewall is divided. Windows Firewall belongs to

• A.Network firewall
• B.Hardware firewall
• C.Software firewall
• D.Stand-alone firewall

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Which of the following description about the group management for VGMP is wrong?

• A.Periodically sends Hello packets between VGMP of master/slave firewall
• B.Theinterface type and number of two firewalls heartbeat port may be different, as long as they can communicate with each other
• C.master/slave devices exchange packets to understand each other through the heartbeat line, and backup the related commands and status information
• D.Master/slave status change of VRRP backup group needs to notify its VGMP management group

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Device destruction attacks are generally not easy to cause information leakage, but usually cause network communication services to be interrupted.

• A.False
• B.True

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When the following conditions occur in the VGMP group, the VGMPmessage will not be sent to the peer end actively?

• A.Firewall service interface failure
• B.Dual hot backup function enabled
• C.Session table entry changes
• D.Manually switch the active and standby status of the firewall.

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