Assignment Problem: Network Architecture
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:
A. Explain the technologies and protocols of physical, data link, network and transport layers.
B. Analyze data communication and networking technologies in today's Internet.
C. Analyze data communication and networking technologies in today's Internet.
Requirements:
Problem 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.
b. Use your web browser 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 32684567. Since the first digit of your student ID is 3, you need to select (3rd item) of the attached list:
Using the Wireshark protocol analyser, capture all packets generated in response to your request 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.
Fig. 1: Message transmission through layers.
Problem 2: Draw how the bit pattern 1 0 1 1 0 0 1 1 would be sent using
a. Unipolar signalling
b. Return to zero (RZ) signalling
c. Non return to zero (NRZ) signalling
d. Manchester encoding
e. Amplitude Modulation (AM)
f. Frequency Modulation (FM)
g. Phase Modulation (PM)
Problem 3: Answer the following questions on media access control:
a. What is media access control and why is it important?
b. List two examples of controlled access and contention-based media access protocols and their application areas.
Problem 4: Briefly describe the Web of Things (WoT). List four examples of WoT applications.
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Attachment:- Network Architecture and Design.rar