againstARPDescription of spoofing attack, which of the following is false

• A.ARPSpoofing attacks can only be done byARPReply to achieve, can not passARPrequest fulfillment
• B.ARPThe implementation mechanism only considers normal business interactions, and does not perform any verification on abnormal business interactions or malicious behaviors
• C.ARPStatic binding is the solutionARPA scheme of spoofing attack, mainly used in scenarios with small network scale
• D.When a host sends normalARPWhen the request is made, the attacker will preemptively answer, causing the host to establish an erroneousIPandMACMapping relations

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Regarding the relationship and role of VRRP/VGMP/HRP, which of the following statements are correct? (Multiple Choice)

• A.HRP is responsible for data backup during dual-system hot backup operation
• B.The VGMP group in the Active state may contain the VRRP group in the Standby state
• C.VRRP is responsible for sending gratuitous ARP to direct traffic to the new master device when the master device is switched.
• D.VGMP is responsible for monitoring equipment failures and controlling the fast switching of equipment

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Please order the following steps about the PKI life cycle correctly

Correct Answer:

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Which of the following stages has the development of information security gone through? (multiple choice)

• A.Communication confidentiality stage
• B.communication assurance stage
• C.Information Assurance Stage
• D.Information security stage

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In addition to supporting built-in Portal authentication, firewall also supports custom Portal authentication, and does not require separate deployment of external Portal servers when using custom Portal authentication.

• A.False
• B.True

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