When the health check is abnormal, First, check whether the rules of the security group where the back-end cloud server is located are valid.()IP network segment?

• A.100.125.0.0/10
• B.100.125.0.0/16
• C.100.125.0.0/14
• D.100.125.0.0/12

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The network segment of the subnet must be within the range of the VPC network segment.

• A.True
• B.mistake

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Which of the following is wrong about the description of the virtual interface?

• A.Currently the virtual interface supports dynamic routing protocol (BGP)
• B.The virtual interface associates the user gateway with the virtual gateway to realize the function of accessing the VPC from the local data center
• C.When deleting a virtual interface, you need to delete the virtual gateway and physical leased line bound to it first
• D.The virtual interface is the entrance to the user's local data center to access the VPC

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VBS Supports simultaneous backup of all cloud hard drives in the server.

• A.True
• B.mistake

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Which of the following are typical application scenarios of web application firewalls?

• A.Anti-tampering
• B.0Day vulnerability outbreak protection
• C.Key detection latest CVE Loopholes
• D.E-commerce snapped up spike protection

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