24/9/2020. Rev 2 30/9/20Dear Students, I’ve put this doc together to give you important information about the final assessment this term. It is as up to date as possible but any changes or adjustments...

24/9/2020. Rev 2 30/9/20Dear Students, I’ve put this doc together to give you important information about the final assessment this term. It is as up to date as possible but any changes or adjustments will be posted online or emailed direct to you. “Take-Home exam” is new, so please carefully read all the conditions and post any questions to the Q&A Forum or email me – note that I may answer emailed questions on Q&A if they are relevant. Good luck! KenKEY POINTS OF THE EXAM CONDITIONS:•The downloadable take-home exam will be available from the ASSESSMENTS TAB area of the Moodle unit website on: 22nd October 3pm AEST (QLD), 4pm (VIC & NSW)•Your typed answer script must be uploaded to Moodle and submitted for marking by: 23rd October 3pm AEST (QLD), 4pm (VIC & NSW) Please ensure you submit the correct file. Reversions to draft to allow resubmission will not be allowed.•The unit coordinator will be available for any exam-related queries for one hour after the release of the exam via the Q&A Forum only.•If you cannot do the exam on the specified date (e.g. illness) you will need to apply for a deferred assessment using the Moodle Extension request system giving the reason along with appropriate documentation such as a medical certificate. Deferred assessment applications will be refused if there are not sufficient grounds and/or supporting documentation. More on this on the last page.•A 24-hour timeframe will be allowed in which you will need to download the exam from the unit’s Moodle website, complete it and upload it back and submit it for marking. If you have other exams within or overlapping this period, you are fully responsible for managing your time accordingly. •You are required to do your own work, maintaining academic integrity with all honesty. If the marker suspects a breach of academic integrity, you may be requested to attend a real-time interview via Zoom to confirm your understanding of your submission. Inability to explain or justify given solutions may result in allegations of academic misconduct.Read the full Assessment Conditions on the last page of this document.IMPORTANT! READ ALL THESE POINTS.1.The downloadable take-home assessment (referred to as an “exam” in this doc) must be completed and submitted online in Moodle within 24 hours of it becoming available in Moodle. The 24 hours begins from when the exam became available in Moodle, not from when you downloaded it.2.The exam is a Microsoft Word document that will contain the questions and spaces for your answers. You must type all your answers within this document. Do not use any other document. Upload the same document that you downloaded.3.Do not copy/paste tables or diagrams from other sources, and do not insert photos or images of any kind to answer any question. Instead just use typed words of your own to answer all questions or use tables already provided in the exam, or use Word tools to create your own tables if required.4.After 24 hours submission closes and the submission link may become unavailable. Any submission after the deadline may not be accepted.5.If you are unable to do or submit this exam in the required time, you will need to apply for a deferred assessment – see Exam Conditions for more detail. 6.The exam is designed to be completed within 3 hours, which is the normal time for onsite exams in this unit. However up to 24 hours is available and you are responsible to submit the exam for marking before the 24-hour expiration. Remember that if you have other exams or assessments due within this period, you are fully responsible for managing your time to submit all assessments within the stated due time.7.You must do this exam STRICTLY ON YOUR OWN. The best way is to use your own computer and do not allow others to use your computer during this time. Do not collaborate or consult with others when doing the exam. All the work done in the exam must be your own personal work and effort. 8.Type all answers clearly in the spaces provided in the downloaded document. You must upload the same document that you downloaded, with your answers typed in it. Answers provided in any other document or form will not be accepted and may not be marked. Do not change protected parts of the document, and do not attempt to remove protection from the document where it has been applied. Penalties may apply.9.You may use your own rough paper; however, these are not to be submitted or uploaded with your exam document. Where calculations are required to be shown, you’ll need to type them into the answer document.10.This examination contains three parts, Parts A, B and C for a total possible 60 marks.11.Answer all questions in all three parts, Parts A, B and C.12.Turn-It-In similarity checking will automatically be applied to every submission.13.You may use a calculator including hand-held calculators with programming and scientific functions, or an electronic calculator provided with your operating system (e.g. Windows or MacOS).14.This take-home exam is Open Book. You may use the textbook or other printed materials and the Internet as references only. However, you must correctly cite and reference the sources you use.Marking criteriaYour answers will be marked on clarity, logic, relevance, and fully addressing all parts of each question.You must use your own words and must not copy text from any source without attribution. Quotations alone are not acceptable as an answer because this does not demonstrate that you personally understand the issue. So a quotation can be used to support your explanation, but cannot be your only explanation.If a question indicates that you are to show your calculations, it means that the calculations form part of the marks for that question. Failure to show your calculations can cause loss of marks, in some cases all of the marks for a question.If a question states an explanation or calculation is “essential”, it means most or all of the marks are for the explanation or calculation. A correct answer with no explanation or calculation is not a sufficient answer in these cases. If a mark appears next to part of the question, e.g. “(1 mark)”, that mark applies to that part of the question.What is the purpose of the Exam?The exam is for you to show that you have learned and understood the concepts or theory that was presented during the term.The exam is worth 50% of total unit marks. Note: previous terms exams was 60%.Is the take-home exam different from previous exams held at exam centres?Just slightly. The take-home exam will be slightly shorter than previous exams due to being weighted at 50% instead of 60%. Everything else is similar to previous exams.Types of Dictionary and Calculator allowedDictionary - non-electronic, concise, direct translation only (dictionary must not contain any notes or comments).Calculator - all non-communicable calculators, including scientific, programmable and graphics calculators are authorised. Calculators with Programmable/Scientific functions are useful for working with binary numbers or Boolean operators.How to answer the questionsThere is no separate answer booklet. You will be given one Exam Paper in Microsoft Word which contains the questions and the spaces for the answers. You should type all answers in the spaces provided for each question, do not place your answers elsewhere. The space will expand automatically as you type, and you can also use the Enter key to expand the given space if you need it.You can do most of your long calculations on your own rough paper, and transfer brief and relevant summaries to the exam paper where you are required to “show your calculations.” Do not upload scans of your rough paper.The exam has three parts, Parts A, B and C. You must answer all questions in all three parts. Type your answers clearly and neatly in the designated spaces. This is important to you – you don’t want the marker to misunderstand what you have written, or to be unable to determine what question you were answering. With longer written answers, be as succinct and complete as possible but do not offer extraneous or extra information that is not needed to answer the question. Remember that everything you write is taken as part of your answer. So for example if your first paragraph answered the question 100%, then you offered a second paragraph that contains errors, you would still lose marks. You can also lose marks if you offer information that may be correct in itself but is not relevant to answering the question.Why do we say to “use your own words”?This usually applies to questions where you are asked to discuss, to describe, to compare or contrast items, or any other question where the answer needs more than just a few words.“Use your own words” means that you should not simply copy out whole passages from the textbook or online sources. Instead, you need to express the key ideas using your own choice of words, phrases and expressions. Even if you do use a quotation, you still need to explain how the quotation supports your answer to the question. Never assume that just quoting something will be a sufficient answer to a question.The reason for this requirement is that we need you to show us that you have personally understood the material, which is the purpose of the exam. This is why you may lose marks if you only copy text as your sole answer. Another significant problem with copying text from elsewhere is that doing so without attribution is considered to be plagiarism, which can have serious consequences.So, use your own words for most of what you write. Sure, it is ok to borrow a few words here and there if it helps you to be clearer, or if it’s appropriate, but most of your answer should be in your own words. Do not worry if English is not your first language. We understand this and make allowances for it. We are not marking your English, we are marking on whether you have shown that you adequately understood the material.Academic IntegrityAcademic Integrity is very important at CQU. As you prepare for this final exam, please keep this in mind. Obtaining a file from another source or copying answers from other students or from online or printed sources without attribution, or paying a service to provide answers (contract cheating) are all instances of academic misconduct and can carry heavy penalties. Knowingly or carelessly supplying answers or a file to other students is also an example of academic misconduct.Did you know that checks for plagiarism can still take place even AFTER the exam has been marked and recorded in Moodle? If such instances are found, misconduct charges can be raised at any time, even after Certification, or into next term or next year. To avoid present and future issues arising, it’s always best to avoid activities that compromise academic integrity, such as the copying issues mentioned above.Your Feedback on the Unit is requested!Please remember to leave your feedback about the unit using the HAVE YOUR SAY red button on the unit website, or just click on the image below to go straight there – and thanks!A description of the exam and its format along with suggestions for preparation begins on the next page.  PART A: Five Short Answer Questions. 2 marks each total 10 marksThere are 5 questions in this part, and can be on any topic that was covered in the lectures from week 1 to week 12. In general, these questions can be answered in one or two words up to one short sentence, occasionally longer. Example 1: With no options, what is the maximum size of an IPv6 payload?Your Answer:_______________________Example 2: When processing a packet, at what point does a router decide to consult ARP? Your Answer:___________________________________________________________Example 3: Consider a block of addresses with a prefix of /19. If this were divided into 8 equal-sized subnets, how many addresses in total would be available in each subnet?Your Answer:___________________________________________________________Hint: Be as precise as possible when answering Short Answer questions – e.g. is it 150 bytes or 150 bits? Since the distinction is significant, you would lose marks if you just said“150”.Suggestions to prepare for short answer questions:•Do a general review of all major topics – you can find these in the unit’s Powerpoints and in the textbook chapters.•Since the exam is Open Book, be familiar with your textbook and learn how to use the index -- it is helpful to know the location of key topics and be able to find information quickly, to save time.•One handy method is to invent your own short questions – as you read, convert what you are reading into a short question – then answer it without looking. Then check your answer from the book.Exercise: Using the Index, quickly locate information in the textbook about the following topics: IPv6; Forwarding techniques; CIDR notation; Fragmentation; Classful addressing; Classless block allocation; WiFi Access points; Broadcast addresses; and Network flow and congestion controls. Time yourself – how long did it take you to find information?PART B: 5 Practical & Theory Problems. Total 25 marksThese questions involve doing calculations on topics such as addressing and subnets similar to what you have done in the assignments. There will also be questions on core theory covered during the term.Carefully review all the practical skills questions about IPv4 addressing, routing and forwarding – if you’re not sure how to do them, seek assistance from a tutor or lecturer or ask in the Q&A Forum.You should show your working – we want to see how you arrived at your answers. You can do this in spaces provided or below the answer area. If your method is sound, you may still earn marks even if your final answer is not 100% correct. You may lose marks if you do not show your working as instructed or if your working shows significant flaws in logic or reasoning even if your final answer was correct.Most problem tasks will be based on textbook chapters 4, 5, and 6. Other chapters will often contain relevant material as well, so be sure to study all topics in their full context.Example1 : An address in a block is given as 180.8.17.9. Find the number of addresses in the block, the first address, and the last addess. (Forouzan p.128) Do the problem then check your answer in the textbook.Example2 : Fully abbreviate the following IPv6 address : 51BC:0000:DCBA:0000:0000:0000:0000:00CDDo it, then check your answer using the examples in the textbook.Example3 : Briefly discuss the limitations of fixed-length class-based addressing and how the techniques of VLSM and CIDR helped.How to prepare for Part B questions:Carefully read through the relevant chapters and work through the given examples, step by step. This is very useful because the worked examples in the chapters show the working and the solutions as well – this enables you to not only practice the techniques, but to also verify that you did it correctly. Work through both addressing and routing table problems.Follow through the examples all the way, e.g. from classful addressing with no subnets, then classful addressing with subnets, and finally through to classless addressing allocations. The textbook discussion is basically organised in that sequence.Don’t neglect the theoretical aspects – they are an important part of the unit – see example-3 for an example of the type of theory questions you may see in Part B.For questions like Example 3, first attempt to answer this on paper, give yourself no more than 10 minutes to just jot down in point form everything you know about it that you think answers the question. Next review relevant material from Forouzan, comparing what you read with your own points and adjusting your notes. Finally attempt a second answer this time in two or three complete paragraphs.PART C: 3 Longer Answer Questions. 5 marks each total 15 marksCalled “Longer Answer” because your answers will generally be longer than in parts A or B. It does not mean your answer must be lengthy or exhaustive. Your answer only needs to adequately answer the question, in a maximum of one page. There is no set length for the answers, but generally, most questions can be answered in 200 - 400 words. Some people need more words than others to say the same thing, so the number of words is only a very rough guide and is not a major marking criterion. Much more important is to be clear and logical in what you write, which are major marking criteria!These questions do not require formal essays, just answers that directly address the question.You may refer to your textbook or other printed materials to help you formulate your answer, however, you must use your own words to answer the question.There will be three specific questions based on the following broad topic areas:•IPv4 address space issues; CIDR vs Classful addressing•Wireless network architectures, cost metrics and routing protocols•IPv4 – IPv6 transition issues•IPv4 – major routing protocols and routing table construction•DNS or DHCP; NAT/PATUse your own words in explaining the concepts. Marks may be deducted for excessive direct quoting from the textbook or any other sources. Where verbatim quoting without proper attribution is detected, the answer will be marked zero.Example-1: In the context of IPv4 addressing allocations, discuss how subnetting helps organisations manage their Class-B address allocations.Example-2: Describe how RREQ and RREP packets enable interzone routing in ad-hoc wireless network routing schemes.Example-3: Contrast the cost metrics between distance vector routing algorithms and link state routing algorithms for building routing tables, and briefly name and summarize the two major routing protocols that use themYou can find the answers in the textbook, and in other resources such as those suggested in the unit website where material is not derived from the textbook.How to prepare for long answer questions:For these topics, one way to review is to use the PowerPoints from the unit website as a base to guide you into more targeted reading in the recommended online readings or the textbook. It may also help to watch the lecture videos, in whole or selected parts.Closely review the broad topic areas indicated above. Try to boil it down to basic questions such as:•What does this technology or method do? What’s the concept?•What are the issues or problems being solved?•What are the techniques or solutions?•How does it relate to other close-by topics?Add your own key questions that may seem more relevant to you! By keeping them in mind during study, you will focus your mind more than if you just read without any specific aim. More Study Hints!◼Do all the example questions in this document. You can find more example questions by downloading any available past exams for this unit from the CQU website. Try posting your questions and comments in the “Q&A Forum” in order to share ideas, problems and solutions with others.◼How do you verify your knowledge? Ways include using the many practice example problems provided in every chapter and seeing if you can reproduce the published solution exactly. Don’t just accept the textbook solution - make sure you understand why the answer is correct. This increases your chances of correctly solving similar problems. Some people ask: “How can I tell my practice answers are correct if there is no solution provided?” e.g. when working through a past exam paper. A good way is to check a worked-out example given in the textbook. If you: a) Understood the problem or question, andb)Understood the way to solve it, andc)Understood the solution and how the author arrived at the solution, thenyou can be reasonably confident that your answers to similar problems will be correct or adequate. But if did not really understand the problem or you didn’t understand the solution or the solution method, then it is very likely that your attempt at similar problems may be incorrect or only partly correct. In this case, take action to address the gap in your knowledge.◼Use the textbook a lot between now and the exam so that you become familiar with where key topics and facts are located. Use the Index!◼Don’t neglect the topics that are derived from online sources rather than the textbook(such as wireless routing) these topics are part of the unit and subject to examination. Watch the video from Week 10, this covers the main concepts about wireless and wireless routing.◼The university’s Academic Learning Centre (ALC) or Library or other support areas may release advices for studying and preparing for exams, and these may also be very helpful to you.We want you to succeed! Use these guidelines, as well as any study advice provided by student services etc, study hard, and have a good exam.Good luck! Ken Howah, Unit CoordinatorExamination Conditions•The take-home exam should take you up to 3 hours to complete. However, a 24-hour timeframe will be allowed in which you will need to download the exam from the unit’s Moodle website, complete it and upload it back. If you have other exams within or overlapping this period, you will be responsible for managing your time accordingly.•The exam will be made available on [SEE PAGE 1] from the UNIT DOCUMENTS area of the Moodle unit website. The unit coordinator will be available for any exam-related queries for one hour after the release of the exam. The unit coordinator can be reached via the Q&A Forum in Moodle, or by emailing [email protected].•Your typed answer script in Microsoft Word file format must be uploaded by [SEE PAGE 1] The submission link may become unavailable after this time. Any submission after the deadline may not be accepted. Please ensure you submit the correct file. Reversions to draft to allow resubmission will not be allowed.•All submissions will be processed via Turnitin®.•You are required to do your own work, maintaining academic integrity with all honesty. If the marker suspects a breach of academic integrity, you may be requested to attend a real-time interview via Zoom to confirm your understanding of your submission. Inability to explain or justify given solutions may result in allegations of academic misconduct.•The marks for your assessed answer script will be made available on Certification of Grades day (10 July). Like regular exams, the assessed answer script will not be returned to you, unless you apply to view it as part of the first step of the review of grade process, which is an informal consultation.•If you are unable to take or complete the exam on the specified date due to illness or some other exceptional circumstances, you need to apply for a deferred assessment via the Assessment Extension Request Link on the Moodle unit page and supply the necessary documentation. Be aware that deferred examination applications will be refused if there are not sufficient grounds and/or supporting documentation. Note also that a deferred assessment is NOT a normal extension. Should your application be accepted, you will be required to take a different assessment at a specified time which may be up to several weeks after the Term 1 grades are certified. This will mean your grade at the normal certification date will be DA (“deferred assessment”).•For further details please refer to the Assessment Policy and Procedure (Higher Education Coursework), which can be found through this link (https://www.cqu.edu.au/policy).•For any technology-related issues, please contact the Technology and ServicesAssistance Centre (TASAC) on the details provided through this link(https://www.cqu.edu.au/about-us/structure/directorates/information-and-technology).