Question: We need to multiply the header length field by _______ to find the total number of bytes in the TCP header.
Answer:
- In TCP, the header length field is a 4-bit field that specifies the length of the TCP header in 32-bit words. To find the total number of bytes in the TCP header, you need to multiply this value by 4.
- Therefore, the formula to find the total number of bytes in the TCP header is:
- Total TCP header length = Header Length field x 4 bytes per word
- Since the Header Length field can have values from 5 to 15 (corresponding to TCP headers of length 20 to 60 bytes, respectively), the total TCP header length can vary from 20 to 60 bytes.
MCQ: We need to multiply the header length field by _______ to find the total number of bytes in the TCP header.
Correct Answer:
A. 2
Explanation:
- In TCP, the header length field is a 4-bit field that specifies the length of the TCP header in 32-bit words. To find the total number of bytes in the TCP header, you need to multiply this value by 4.
- Therefore, the formula to find the total number of bytes in the TCP header is:
- Total TCP header length = Header Length field x 4 bytes per word
- Since the Header Length field can have values from 5 to 15 (corresponding to TCP headers of length 20 to 60 bytes, respectively), the total TCP header length can vary from 20 to 60 bytes.
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Related Questions
- 1. In TCP, urgent data requires the urgent pointer field as well as the URG bit (to be set) in the _______ field.
- 2. In TCP, if the ACK value is 200, then byte _______ has been received successfully.
- 3. In TCP, the _______ timer prevents a long idle connection between two TCPs.
- 4. In TCP, the _______ timer is needed to handle the zero window-size advertisement.
- 5. In TCP, Karn's algorithm is used in calculations by the _______ timer.
- 6. In TCP, a special segment called a probe is sent by a sending TCP when the _______ timer goes off.
- 7. __________ control refers to the mechanisms and techniques to keep the load below the capacity.
- 8. In TCP's ________ algorithm the size of the congestion window increases exponentially until it reaches a threshold.
- 9. In TCP's __________ algorithm the size of the congestion window increases additively until congestion is detected.
- 10. ________ treats the two signs of congestion detections, timeout and three duplicate ACKs, in the same way.
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