Which of the following is the encryption technology used in digital envelopes?

• A.Hash algorithm
• B.Stream encryption algorithm
• C.Symmetric encryption algorithm
• D.Asymmetric encryption algorithm

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Which of the following is true about the description of the firewall?

• A.In order to avoid single point of failure, the firewall only supports side-by-side deployment.
• B.Adding a firewall to the network will inevitably change the topology of the network.
• C.The firewall cannot transparently access the network.
• D.Depending on the usage scenario, the firewall can be deployed in transparent mode or deployed in a three-bedroom mode.

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Which of the following statements are correct about the differences between pre-accident prevention strategies and post-accident recovery strategies? (Multiple Choice)

• A.The prevention strategy focuses on minimizing the likelihood of an accident before the story occurs. The recovery strategy focuses on minimizing the impact and loss on the company after the accident
• B.Recovery strategy is used to improve business high availability
• C.The role of pre-disaster prevention strategies does not include minimizing economic, reputational, and other losses caused by accidents.
• D.Recovery strategy is part of the business continuity plan

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Antivirus software and host firewall have the same effect

• A.True
• B.False

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Which of the following is the default backup method for double hot standby?

• A.Configuration of the active and standby FWs after the device is restarted
• B.Session fast backup
• C.Automatic backup
• D.Manual batch backup

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