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Question 9 - ICS-SCADA Cyber Security discussion

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Which of the following are valid TCP flags?

A.
None of these
Answers
A.
None of these
B.
IGP,ACK,SYN,PSH,URG
Answers
B.
IGP,ACK,SYN,PSH,URG
C.
BGP,FIN,PSH,SYN,ACK
Answers
C.
BGP,FIN,PSH,SYN,ACK
D.
FIN,PSH,URG,RST,SYN
Answers
D.
FIN,PSH,URG,RST,SYN
Suggested answer: D

Explanation:

TCP flags are used in the header of TCP segments to control the flow of data and to indicate the status of a connection. Valid TCP flags include:

FIN: Finish, used to terminate the connection.

PSH: Push, instructs the receiver to pass the data to the application immediately.

URG: Urgent, indicates that the data contained in the segment should be processed urgently.

RST: Reset, abruptly terminates the connection upon error or other conditions.

SYN: Synchronize, used during the initial handshake to establish a connection. These flags are integral to managing the state and flow of TCP connections.

Reference:

Douglas E. Comer, 'Internetworking with TCP/IP Vol.1: Principles, Protocols, and Architecture'.

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asked 18/09/2024
Ibrahim mazou Ismael
45 questions
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