Q: Which field in the TCP header provides the information for the receiving network device to understand where the actual data payload begins?
or
Q: Which TCP header field contains the information needed by the receiving network device to determine the start of the actual data payload?
- Sequence number
- Checksum
- Data offset
- Acknowledgement number
Explanation: The Data Offset, which is often referred to as the Header Length, is a parameter that sets the size of the TCP header. This parameter enables the receiving device to ascertain the point at which the header finishes and the real data payload begins.