The protocol number of the transport layer protocol TCP is ( ) (fill in the blank)

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at HuaweiSDSecIn the solution, which of the following options belong to the device of the executive layer?
(multiple choice)

• A.AntiDDoS
• B.Fierhunter
• C.CIS
• D.router

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Which of the following options are included in the protection of data by encryption technology during data transmission? (multiple choice)

• A.integrity
• B.confidentiality
• C.source check
• D.controllability

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The direction of the traffic can be seen in the ___ of the firewall.[fill in the blank]*

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Gratuitous ARP can be used to detect if _____address conflicts, and it can also refresh the MAC address table of the switch.

• A.IP

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