If the company structure has undergone a practical change, it is necessary to retest whether the business continuity plan is feasible

• A.False
• B.True

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

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

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Against IP Spoofing,which of the following description is wrong?

• A.IP spoofing is to use the hosts' normal trust relationship based on the IP address to launch it
• B.An attacker would need to cisguise the source IP addresses as trusted hosts, and send the data segment with the SYN flag request for connection
• C.Af-.er IP spoofing attack is successful, the attacker can use forged any IP address to imitate legitimate hast to access to critical information

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Which of the following is true about the sequencing of the PKI work process?
1. The communication terminal applies for CA certificate.
2. PKI replies to CA certificate
3. Obtain each other's certificate and verify the validity
4. Communication terminal installs local certificate
5. PKI issues a local certificate
6. The communication terminal applies for a local certificate
7. Communication terminal installs CA certificate
8. Communicate with each other

• A.6-5-4-3-1-2-7-8
• B.1-2-7-6-5-4-3-8
• C.6-5-4-1-2-7-3-8
• D.1-2-6-5-7-4-3-8

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Which of the following addresses can be used for web management address of USG product? (Choose three.)

• A.Interface Address
• B.Sub-interface address
• C.Slave IP address of the interface
• D.AUX interface address

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