Recent Question/Assignment

Assessment Details and Submission Guidelines
Trimester T1 2019
Unit Code BN208
Unit Title Networked Applications
Assessment Type Group Assignment
Assessment Title Network Performance Analysis (Assignment 2)
Purpose of the assessment (with ULO Mapping) This assignment assesses the following Unit Learning Outcomes; students should be able to demonstrate their achievements in them.
d) Discuss performance and deployment issues for networked applications;
e) Utilise appropriate industry tools and techniques to manage networked applications
Weight 15%
Total Marks 50
Word limit 1200 – 1500
Due Date Wednesday, 29 May 2019 (05:00 PM) Week 11
Submission Guidelines • All work must be submitted on Moodle by the due date along with a
completed Assessment Cover Page.
• The assessment must be in MS Word format, 1.15 spacing, 12-pt Calibri
(Body) font and normal margins on all four sides of your page with appropriate section headings.
• Reference sources must be cited in the text of the report, and listed
appropriately at the end in a reference list using IEEE referencing style.
• The report should be in MS word format submitted on Moodle on time.
Extension If an extension of time to submit work is required, a Special Consideration Application must be submitted directly to the School's Administration Officer, in Melbourne on Level 6 or in Sydney on Level 7. You must submit this application three working days prior to the due date of the assessment. Further information is available at:

Academic Misconduct Academic Misconduct is a serious offence. Depending on the seriousness of the case, penalties can vary from a written warning or zero marks to exclusion from the course or rescinding the degree. Students should make themselves familiar
with the full policy and procedure available at:

Assignment #02 Description
This assignment is designed to develop student’s analytical skills in addition to Wireshark utilisation to capture data from live network traffic. Through the labs, students have learned how to analyse HTTP packets, TCP packets streams, audio streaming with TCP. Students have learned to identify the performance parameters such as load distribution, throughput graph, time sequence graph, flow graph and window scaling graph.
Overview and General Instructions of Assignment
Students need to use captured Wireshark data to explain the performance of the distributed system behind the given web system. In the report, students need to focus on the effect of different browsing data on graphs, and justify the effect of it. Students need to complete the following tasks in two different networks, the tasks 1a and 1b need to perform in MIT lab Network, and the 2nd task needs to perform in either home or work-place network.
From the (MIT lab Network), students need to chase and capture data packets from
a) List 3 different protocols that appear in the protocol column in the unfiltered packet-listing window in. Support your answer with an appropriate screenshot from your computer.
b) How long did it take from when the HTTP GET message was sent until the HTTP OK reply was received? (By default, the value of the Time column in the packet-listing window is the amount of time, in seconds, since Wireshark tracing began. To display the Time field in time-of-day format, select the Wireshark View pull down menu, then select Time Display Format, then select Time-of-day.)
c) What is the Internet address of the What is the Internet address of your computer? Support your answer with an appropriate screenshot from your computer.
Task – 1b
From the (MIT lab Network), students need to chase and capture data packets from three websites in the table below (Table 1). Students have to analyse the performance for each website in regards of:
v' Load Distribution
v' Throughput Graph
v' Time Sequence Graph
v' Flow Graph (Both general and TCP flow)
v' Window Scaling Graph

Websites Performance Parameters o Load Distribution
o throughput graph and
o Time Sequence graph
o Flow graph (Both general and TCP flow)
o Window scaling graph
Table 1: Websites, analytical tools/performance parameters
Task - 2
Investigate streaming audio delivery over TCP by listening to Internet live radio and capturing the transmitted packets.
From a second network (Home, work, etc.), students have to chase and capture one more website which has an audio stream (such as radio stations, e.g Students are free to choose any website. Show your analysis using TCP Stream Graph and Time Sequences Graph.
NB: You can also demonstrate other statistics that you find to be significant for analysing this network traffic.
Marking Criteria/Report Structure:
Report must have five sections, each section title as the table below:
Section to be included
in the report Description of the section Marks
Introduction Outline of the report 5
Task -1a
Task-1b Explain about the captured data 5
The significance of the project to given performance parameters. Analyse the topic in terms of network performance. 15
Task -2 Explain briefly the output of the graphs.
Analyse the topic in terms of network performance. 10
Reporting The quality of the report (report style) Grammar and Syntax check 5
Conclusion Write short conclusion of the report 5
Reference style Follow IEEE reference style
At least of 5 different references 5
Total 50

Marking Rubric for Assignment #2: Total Marks 50
Mark HD 40-50 DI 35-39 CR 30-34 P 25-29 Fail 25
Excellent Very Good Good Satisfactory Unsatisfactory
Introduction /5 All topics are pertinent and covered in depth. Ability to think critically and source material is Topics are relevant and soundly analysed. Generally relevant and analysed. Some relevance and briefly presented. This is not relevant to the assessment topic.
/20 Demonstrated excellent ability to think critically and sourced reference material appropriately demonstrated excellent ability to think critically but did not source reference material appropriately Demonstrate d ability to think critically and sourced reference material appropriately Demonstrated ability to think critically and did not source reference material appropriately Did not demonstrate ability to think
critically and did not source reference material appropriately
/10 Logic is clear and easy to follow with strong arguments Consistency
logical and
convincing Mostly consisten t and logical Adequate cohesion and conviction Argument is confused and disjointed
Reporting /5 All elements
are present and
very well
integrated. Components present with good cohesive Components present and mostly well integrated Most
components present Proposal lacks structure.
Conclusion /5 Excellent use of creditable sources. Accurate referencing. Obvious that outstanding effort made Extremely good effort Good effort made but not outstanding Made some effort. For example, Web searches only Very little attempt to reference. Lazy effort with inaccuracies
Reference style /5 Clear styles with excellent source of references. Clear referencing style Generally good referencing style Sometimes clear referencing style Lacks consistency with many errors

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