Which of the following descriptions about IKE SA is wrong?

• A.The encryption algorithm used by user data packets isdetermined by IKE SA.
• B.IKE SA servers for IPSec SA
• C.IKE is a UDP- based application layer protocol
• D.IKE SA is two-way

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Apply for emergency response special funds, which stage work content does procurement emergency responsesoftware and hardware equipment belong to in the network full emergency response?

• A.Inhibition phase
• B.Preparation stage
• C.Recovery phase
• D.Response phase

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Which of the following is the correct description of windows log event type? (Multiple Choice)

• A.When the disk space isinsufficient, it will be recorded as an "information event"
• B.A warning event is asuccessful operation event of an application, driver, or service.
• C.Failure audit event refers to a failed audit security login attempt, such as a failure when the user views accesses the network drive is logged as a failed audit event.
• D.Error events usually refer to the loss of function and data. For example, if a service cannot be loaded as a system boot, an error event will be generated.

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In the environment of GRE configuration, which of the following statements are true? (Choose three.)

• A.When the opposite end receives data packets, by identifying the protocol field value of IP header for GRE to determine whether send the data packet to GRE module for processing
• B.If both ends enable the configuration of keyword verification, the keyword must be the same
• C.When the local device send data packets, by identifying the protocol field value of IP header for GRE to determine whether send the data packet to GRE module for processing
• D.In order to make the ends of the tunnel forward data packets normally, the devices of both ends are configured routing which through the Tunnel interface

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Which of the following are the main implementations of gateway anti-virus? (Multiple choice)

• A.File killing method
• B.Package inspection method
• C.Stream scanning method
• D.Agent scanning method

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