Question: In TCP, there can be ______ RTT measurement(s) in progress at any time.
Answer:
- In TCP, there can be multiple Round-Trip Time (RTT) measurements in progress at any time.
- RTT is the time it takes for a data packet to travel from the sender to the receiver and back again, and it is used by TCP to determine the appropriate retransmission timer value for data segments. TCP maintains separate RTT estimates for each active connection, and it updates these estimates continuously based on the actual observed round-trip times.
- Since TCP can have multiple data segments in flight simultaneously, it is possible to have multiple RTT measurements in progress at any given time. TCP maintains separate RTT estimates for each outstanding segment, and it uses the minimum of these estimates to calculate the retransmission timer value. This approach allows TCP to adapt to changing network conditions and avoid unnecessary retransmissions.
MCQ: In TCP, there can be ______ RTT measurement(s) in progress at any time.
Correct Answer:
A. two
Explanation:
- In TCP, there can be multiple Round-Trip Time (RTT) measurements in progress at any time.
- RTT is the time it takes for a data packet to travel from the sender to the receiver and back again, and it is used by TCP to determine the appropriate retransmission timer value for data segments. TCP maintains separate RTT estimates for each active connection, and it updates these estimates continuously based on the actual observed round-trip times.
- Since TCP can have multiple data segments in flight simultaneously, it is possible to have multiple RTT measurements in progress at any given time. TCP maintains separate RTT estimates for each outstanding segment, and it uses the minimum of these estimates to calculate the retransmission timer value. This approach allows TCP to adapt to changing network conditions and avoid unnecessary retransmissions.
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Related Questions
- 1. We need to multiply the header length field by _______ to find the total number of bytes in the TCP header.
- 2. In TCP, urgent data requires the urgent pointer field as well as the URG bit (to be set) in the _______ field.
- 3. In TCP, if the ACK value is 200, then byte _______ has been received successfully.
- 4. In TCP, the _______ timer prevents a long idle connection between two TCPs.
- 5. In TCP, the _______ timer is needed to handle the zero window-size advertisement.
- 6. In TCP, Karn's algorithm is used in calculations by the _______ timer.
- 7. In TCP, a special segment called a probe is sent by a sending TCP when the _______ timer goes off.
- 8. __________ control refers to the mechanisms and techniques to keep the load below the capacity.
- 9. In TCP's ________ algorithm the size of the congestion window increases exponentially until it reaches a threshold.
- 10. In TCP's __________ algorithm the size of the congestion window increases additively until congestion is detected.
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