Data analysis technology is to find and -natch keywords or key ohrases in the acquired data stream or information flow, and analyze: he correlation of time. Which of the following is not an evidence analysis technique?

• A.Password deciphering, data decryption technology
• B.Spam tracking technology
• C.Document Digital Abstract Analysis Technology
• D.Techniques for discovering the connections between different evidences

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The network administrator can collect data to be analyzed on the network device by means of packet capture, port mirroring, or log, etc.

• A.False
• B.True

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Which of the following is the port number used by L2TP packets?

• A.1701
• B.4500
• C.17
• D.500

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Which VPN access modes are suitable for mobile office workers? (Choose three.)

• A.SSL VPN
• B.L2TP VPN
• C.GRE VPN
• D.L2TP over IPsec

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About the description of firewall active-standby, which of the following is correct? (Multiple Choice)

• A.The firewall active-standby requires the information such as the session table, MAC table, routing table and so on synchronous backup between primary devices and slave devices.
• B.When a plurality of regions on the firewall need to provide dual-machine backup function, you need to configure multiple VRRP backup groups on the firewall.
• C.VGMP is to ensure all VRRP backup groups' consistency of switching
• D.It requires the state of all the VRRP backup groups in the same VGMP management group on the same firewall should be consistent.

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