Suggested Answer:D🗳️
Source Port Address is a 16-bit field that identifies the source port number of the application program in the host that is sending the segment. Answer option C is incorrect. This is a 32-bit field that identifies the byte number that the sender of the segment is expecting to receive from the receiver. Answer option B is incorrect. This is a 4-bit field that defines the 4-byte words in the TCP header. The header length can be between 20 and 60 bytes. Therefore, the value of this field can be between 5 and 15. Answer option A is incorrect. This is a 32-bit field that identifies the number assigned to the first byte of data contained in the segment.
The 16-bit field that identifies the source port number of the application program in the host that is sending the segment is option D: Source Port Address.
Here's a brief explanation of each option:
A. Sequence Number: This field is used for ordering and sequencing segments and is not related to identifying the source port.
B. Header Length: This field specifies the length of the TCP header and is not used to identify the source port.
C. Acknowledgment Number: This field is used for acknowledging received data and is not related to identifying the source port.
D. Source Port Address: This is the correct choice. The source port address in a TCP header indicates the port number of the application sending the data. It helps the receiving end identify the source application on the sender's host.
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surfuganda
1 year, 1 month ago