Microsoft Word - ITECH2301_Ass1.doc
Network Architecture
ITECH2301-Network
Architecture and Design
CRICOS Provider No. 00103D itech2301_ass1.doc- Network Architecture Assignment, Semester 1, 2020 Page 1 of 5
Due Date
Week 8 on Tuesday at 23:55
Worth
20% (Marked out of 100 marks)
Type
Type A
Assessment Objective
This assignment provides an opportunity to understand the techniques and protocols used in
the layers of TCP/IP network (Internet) model
Learning Outcomes Assessed:
K3 - Explain the technologies and protocols of physical, data link, network and transport
layers.
S1- Analyse data communication and networking technologies in today's Internet.
A2 - Analyse data communication and networking technologies in today's Internet.
Requirements
1. Fig. 1 illustrates how a message is transmitted from the application layer to the physical layer in
the Internet model of a data communication network.
a. With the aid of the diagrams of header formats, explain the main purpose of all fields of the
header formats of the transport, network, and data link layers protocols. For example, the
main purpose of the source address and destination address of an IP Header is to provide the
sender and receiver IP addresses, respectively. Note, for IP header, include IPv4 packet
header format only i.e., you do not need to consider IPv6 packet header format.
[15+15=30 marks]
. Use your web
owser to connect to one of the following websites whose number in the
number list is equal to the first non-zero digit of your student ID. Let your student ID be
XXXXXXXXXXSince the first digit of your student ID is 3, you need to select
https:
www.harvard.edu/ (3rd item) of the following list:
1. https:
web.mit.edu/
2. https:
www.stanford.edu/
3. https:
www.harvard.edu/
4. http:
www.ox.ac.uk/
Network Architecture
ITECH2301-Network
Architecture and Design
CRICOS Provider No. 00103D itech2301_ass1.doc- Network Architecture Assignment, Semester 1, 2020 Page 2 of 5
5. https:
www.imperial.ac.uk/
6. https:
www.berkeley.edu/
7. https:
www.southwales.ac.uk/
8. https:
www.wisc.edu/
9. http:
umanitoba.ca/
Using the Wireshark protocol analyser, capture all packets generated in response to your
equest for the above web page. For a selected pair of the first HTTP request‐response lines,
write the hex/decimal values of all fields of the header formats of the transport, network and
data link layers protocols whatever available in your file captured by Wireshark.
[15+15=30 marks]
• The application Layer
uses the HTTP
protocol
• The transport layer
uses the TCP
(Transmission Control)
Protocol
• The network layer uses
The IP (Internet)
Protocol
• The data link layer of the
LANs typically uses the
Ethernet protocol
• Protocol Data Units
(PDUs)
XXXXXXXXXXFig. 1: Message transmission through layers.
2. Draw how the bit pattern XXXXXXXXXXwould be sent using
a. Unipolar signalling [2 marks]
. Return to zero (RZ) signalling [2 marks]
c. Non return to zero (NRZ) signalling [2 marks]
d. Manchester encoding [5 marks]
Network Architecture
ITECH2301-Network
Architecture and Design
CRICOS Provider No. 00103D itech2301_ass1.doc- Network Architecture Assignment, Semester 1, 2020 Page 3 of 5
e. Amplitude Modulation (AM) [2 marks]
f. Frequency Modulation (FM) [2 marks]
g. Phase Modulation (PM) [5 marks]
[Total 20 marks]
N.B. You can draw the bit pattern on papers and insert them as pictures into your document.
3. Answer the following questions on media access control:
a. What is media access control and why is it important? [2+2=4 marks]
. List two examples of controlled access and contention-based media access
protocols and their application areas. [4+4=8 marks]
[Total 12 marks]
4. Briefly describe the Web of Things (WoT). List four examples of WoT applications.
[4+4=8 marks]
Network Architecture
ITECH2301-Network
Architecture and Design
CRICOS Provider No. 00103D itech2301_ass1.doc- Network Architecture Assignment, Semester 1, 2020 Page 4 of 5
Assessment Feedback
ITECH 2301 Students
Student
Elements Maximum
Marks
Marks
Obtained
Header formats – TCP header 5
– IPv4 header 5
– Ethernet frame (header) 5
Descriptions of fields – TCP header 5
– IPv4 header 5
– Ethernet frame (header) 5
Values of HTTP request – TCP header 5
– IPv4 header 5
– Ethernet frame (header) 5
Values of HTTP response – TCP header 5
– IPv4 header 5
– Ethernet frame (header) 5
Drawings for the bit pattern – Unipolar signalling XXXXXXXXXX2
– Return to zero (RZ) signalling 2
– Non return to zero (NRZ)
signalling XXXXXXXXXX2