Semester 2 Main, 2021 ITEC201 Student Number|__|__|__|__|__|__|__|__|__| Family Name _____________________ First Name _____________________ School of Business EXAMINATION Semester 2 Main, 2021...

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Semester 2 Main, 2021ITEC201 Student Number|__|__|__|__|__|__|__|__|__| Family Name_____________________ First Name_____________________ School of Business EXAMINATION Semester 2 Main, 2021 ITEC201 Fundamentals of Information Technology - North Sydney, Melbourne, Backdown, Brisbane Lecturer:Kamanashis Biswas Examination Duration:0 minutes Weighting:50% Exam Conditions: You must answer all questions. Materials Permitted In The Exam Venue: N/A - Hosting a Take-Home Exam Materials To Be Supplied To Students: None Instructions To Students: Please note, this take-home examination is due by the closing date/time. Late submissions will not be accepted. To verify the date/time your assessment is due, please refer to submission link in the relevant LEO EXAM unit. Question 1 (5 Marks) a) Let’s say, a system’s performance is enhanced and it is now 10 times faster than the original system. However, the system is usable only 60% of the time. Determine the overall performance gain by the enhancement using Amdhal’s law (3 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Why is it predicted that Moore’s law will be dead by the end of 2022? Do you agree or not with this prediction? Justify your answers (2 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ Question 2 (5 Marks) a) Demonstrate the Fetch-Execute cycle using a micro-program (3 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) The following figure shows the memory addresses and contents (not in a contiguous format). A program is fetching values from the memory and storing them in the accumulator register (once at a time). Fill up the following table using the figure (2 marks). Memory Address Content 800 700 900 500 1000 1400 1100 1600 1200 1300 1300 1100 1400 900 1500 650 1600 700 Operand 1000 Operand 1400 Mode Value in Accumulator Mode Value in Accumulator Immediate 1000 Immediate 1400 Direct Direct Indirect Indirect Question 3 (5 Marks) a). Subtract the following decimal numbers using 2’s complement. You must show all steps involved in this subtraction process (3 marks). 47 - 17 _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) What would be the hexa-decimal representation of ItEc201? You can use the ASCII chart provided in the Appendix section (2 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ Question 4 (5 Marks) a) Consider the following figure. Represent the discrete samples into their corresponding hex values. Draw the analog signal (3 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Fill up the following table (2 marks). Image Type Bits/Pixels Number of Colours Bitmap GreyScale Colour-Mapped True-Colour Question 5 (5 Marks) a) Construct the truth table for the following circuit. Can this circuit be replaced by a single gate? If so, draw the gate (2 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Suppose the voice channels of 7 subscribers of a local telephone exchange in the Sydney are multiplexed and sent on a single carrier to Brisbane. How many selection input bits are needed by the decoder of this simple multiplexer? Draw a block diagram showing the inputs and outputs only (3 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ Question 6 (5 Marks) a) Why Shift operation is important? Multiply between the following decimal numbers using Shift operation: 15 x 9. You must show the outcomes of each shift operation (3 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Distinguish between combinatorial logic and sequential logic with figure (2 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ Question 7 (5 Marks) a) Convert the decimal number 912 to its corresponding IEEE754 format (3 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Consider the following structure with two integer variables. The first variable is 4 bytes long whereas the second variable takes 2 bytes space in the memory. Show the memory occupation by the structure in both big-endian and little-endian format (2 marks). Struct Endian{ int32_t firstVar = 0x09080c0d; int16_t secondVar = 0x0a0b; } 00 04 08 Big-Endian Little-Endian 00 04 08 Question 8 (5 Marks) a) Define the following terms: i) bootstrapping, ii) context switching (2 marks). _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Consider the following jobs that the CPU will be executing. Job id Arrival time Execution time (s) Priority 1 00:00:20 20 2 2 00:00:30 15 1 3 00:00:30 10 3 Show the execution sequence for each of the following algorithms (3 marks). Scheduling Algorithms Job Execution Sequence FCFS Priority Scheduling Shortest Jobs First Question 9 (5 marks) a) Why IP address is not enough to communicate between 2 different systems in a network? What other types of addresses are used in computer networks (2 marks)? _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ b) Let A (IP: 192.168.10.10, MAC: 00-AA-BB-CC-DD-FF, Port:80) is sending a packet to B (IP: 192.168.20.10, MAC: 10-AA-BB-CC-DD-FF, Port: 8080). Identify what information would be added at each layer using data encapsulation process (3 marks). Application Layer AL Header Data Transport Layer ? ? AL Data Network Layer ? ? TL Data Data Link Layer ? ? NL Data FCS Question 10 (5 marks) a) Read the case study on “delivery services”. Answer the following questions based on your critical analysis and research on the case study. i) What are the ethical concerns (1 mark)? ii) What are the implications of working as contractor as opposed to an employee (1 mark)? iii) What workplace rights are being denied? What are causing that (1 mark)? iv) What SD goals are affected? What are the social concerns (2 marks)? _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ END OF EXAMINATION Appendix: ASCII Table HEX MSD 0 1 2 3 4 5 6 7 LSD BITS 0000 0001 0010 0011 0100 0101 0110 0111 0 0000 NUL DLE space 0 @ P ` P 1 0001 SOH DC1 ! 1 A Q a Q 2 0010 STX DC2 “ 2 B R b R 3 0011 ETX DC3 # 3 C S c S 4 0100 EOT DC4 $ 4 D T d T 5 0101 ENQ NAK % 5 E U e U 6 0110 ACK SYN & 6 F V f V 7 0111 BEL ‘ 7 G W g W 8 1000 BS ( 8 H X h X 9 1001 TAB ) 9 I Y i Y A 1010 LF * : J Z j Z B 1011 VT ESC + ; K [ k { C 1100 FF , < l="" \="" l="" |="" d="" 1101="" cr="" -="M" [="" m="" }="" e="" 1110="" so="" .=""> N ^ n ~ F 1111 SI / ? O _ o Page1 of 1
Answered 3 days AfterNov 08, 2021

Answer To: Semester 2 Main, 2021 ITEC201 Student Number|__|__|__|__|__|__|__|__|__| Family Name...

Karthi answered on Nov 11 2021
119 Votes
Semester 2 Main, 2021        ITEC201
Student Number    |__|__|__|__|__|__|__|__|__|
Family Name        _____________________
First Name        _____________________
School of Business
EXAMINATION
Semester 2 Main, 2021
ITEC201 Fundamentals of Information Tech
nology - North Sydney, Melbourne, Backdown, Brisbane
Lecturer:        Kamanashis Biswas
Examination Duration:    0 minutes
Weighting:        50%
Exam Conditions:
You must answer all questions.
Materials Permitted In The Exam Venue:
N/A - Hosting a Take-Home Exam
Materials To Be Supplied To Students:
None
Instructions To Students:
Please note, this take-home examination is due by the closing date/time. Late submissions will not be accepted. To verify the date/time your assessment is due, please refer to submission link in the relevant LEO EXAM unit.
Question 1 (5 Marks)
a) Let’s say, a system’s performance is enhanced and it is now 10 times faster than the original system. However, the system is usable only 60% of the time. Determine the overall performance gain by the enhancement using Amdhal’s law (3 marks).
Se = 10
F = 60/100 = 0.6
So = 1 / (( 1 - F) + F/Se)
= 1/ (0.4 + 0.6/10)
= 1/0.64 = 1.56.
b) Why is it predicted that Moore’s law will be dead by the end of 2022? Do you agree or not with this prediction? Justify your answers (2 marks).
Moore's Law, which predicted the development of more robust computer systems (with more transistors), is coming to an end due to engineers' inability to produce circuits with smaller (and more numerous) transistors.
Question 2 (5 Marks)
a) Demonstrate the Fetch-Execute cycle using a micro-program (3 marks).
b) The following figure shows the memory addresses and contents (not in a contiguous format). A program is fetching values from the memory and storing them in the accumulator register (once at a time). Fill up the following table using the figure (2 marks).
    Memory Address
    Content
    800
    700
    900
    500
    1000
    1400
    1100
    1600
    1200
    1300
    1300
    1100
    1400
    900
    1500
    650
    1600
    700
                
    Operand 1000
    Operand 1400
    Mode
    Value in Accumulator
    Mode
    Value in Accumulator
    Immediate
    1000
    Immediate
    1400
    Direct
    1300
    Direct
    1100
    Indirect
    1400
    Indirect
    900
Question 3 (5 Marks)
a). Subtract the following decimal numbers using 2’s complement. You must show all steps involved in this subtraction process (3 marks).
    47
    - 17
    
101111 – 10001 = 011110
b) What would be the...
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