A and B are communicating over TCP connection. B Sends a packet with ACK number 400, which is received by A. Suppose A sends two segments to B, one immediately after the
other. The first and second segments contain 50 and 70 bytes of data respectively. In the first
segment, the source port number is 1028 and destination port number is 21. B sends an ACK
after receiving each packet.
i. What are the sequence number, source port and destination port of the second
segments sent from A to B? Briefly justify your answer.
ii. Assume the first segment arrives before the second segment, son B sends and
acknowledgement after each segment receives. What is the sequence number in each
acknowledgment?

:you areto design the controller for alight that functions both as an ordinary light and also as a motion activated light and alarm. a.if the manual switch s is on, then the light l is on. b.besides the manual switch, there is a motion detector, m1, which activatesthis light.c.if motion is detected but the light is on anyway because s is on, only then a secondoutput a, an alarm, is turned on. d.the disable switch, d, disables the motion activated light and alarmbut leaves manual control operation of the light using switch s.(i)read the problem statement and clearly identify the inputs and outputs for the circuit you are designing. (ii)create the truth table for this system; include the light, alarm, switch, disable, and the motion sensor.(iii)draw a schematic of this system.