Given the following information:
Value of original timestamp: 46
Value of receive timestamp: 59
Value of transmit timestamp: 60
Time the packet arrived: 67
We can calculate:
Sending time = 59 − 46 = 13 milliseconds
Receiving time = 67 − 60 = 7 milliseconds
Round-trip tim e = 13 + 7 = 20 milliseconds
Time difference = receive timestamp − ( original timestamp field + one-way time duration)
Time difference = 59 − (46 + 10) = 3
So,answer is (A)