0 11 9 S 1000 R 1000 S 1000 3542 3513 3570 3571 ? 0 55239 hrtime tty3 0 - 56323 tty3 055247 piper tty3 20 80 0 2568 0 80 2568 080 2568 080 00:00:00 kuorker/u2:1-events_un 00:00:00 sleep 00:00:00 ps 00:00:00 tail Based on the above picture to answer questions. The above picture is part of the output of the command ps -el 1. What is the PID for the ps process? 2. which process has a Process ID of 1? 3. what character do most process have in the terminal column? 4. What does this character in the terminal column indicate? Because they are 5. Which user started most of these processes?

Replace all the 0 (Zero) digits in your ID by 4. Example: If your ID is 382200448 , it becomes 382244448 Take the first 6 digits and substitute them in this expression (( A + B) / C) * ((D-E)/F)-2) according to the following table;                                                                                       [1 mark] Letter Replace by Digit Example Digit A 1st 3 B 2nd 8 C 3rd 2 D 4th 2 E 5th 4 F 6th 4   After substitution your expression ? Draw a rooted tree that represents your expression.                             [3 marks] What is the prefix form of this expression.                             [3 marks] What is the value of the prefix expression obtained in step 2 above? [3 marks]

Q4: Show how to generate a codeword for the dataword “10011010" if CRC is used for coding with the divisor "1101".

V a d U P2 h W g f Y V a C2 h C W) g f Y Select the best description of the following: UWXYWV: Simple cycle VXY: [non-simple] Path VXYUV: Simple path UWXYWVU: Simple cycle %3D