Write functions of each layer of osi reference model

Assignment Help Computer Networking

Reference no: EM132277133

Task

This assessment aims to develop and gauge student understanding of the key topics covered so far by answering the following questions. Answering these questions will help you build some understanding for the next assessment item as well as for the entire subject. It is expected that answers to the assignment questions be succinct (i.e. precise and concise) with all sources of information fully referenced as per APA referencing style. You have to reference the text book and any additional material you have used in your answers.

Note that the guide for APA referencing is provided in the resources section of Interact site of this subject.

Answers MUST be written in your own words. No marks will be awarded for any answer that contains more than 10% direct quote (referenced or unreferenced). One or two sentence answers will be too short and only receive low marks. Answers longer than 1.5 pages (12 point font, single line spacing) may incur a penalty if too much non-relevant information is stated. For mathematical questions it is expected that you show intermediate steps of your working. Just stating the correct solution will result in low marks, on the other hand if the working is correct and you only made minor mistakes, you will still be awarded marks, even though the final answer is wrong.

Question 1
Write functions of each layer of OSI reference model, also differentiate between hardware and software layers. Explain your view; why Network layer of OSI model is called Internet layer in TCP/IP networking model?

Question 2
Complete the following Hands-On Projects from the prescribed textbook (Pyles, Carel & Titter 2017)

Hands-On Project 2-3

Hands-On Project 3.2

In order to complete this activity, students should insert screenshots in the assignment document along with a short description of each step taken to complete the project.

Question 3

For any data communication, MAC and IP addresses play very important role, explain why these two types of address are important and what critical role ARP protocol plays in this scenario?

Question 4 Case study task

In your role as a Solutions Architect at Foreshore IT Solutions, you are leading a team of several system administrators. Foreshore IT Solutions is a large organisation and is currently expanding its operations.

The company was using six sites across Brisbane to accommodate its various departments. These departments are interconnected by three routers.

Company's current network is shown as above, which include following departments at various sites:

Site Department No of Hosts

HQ Sales 16000

Marketing 8000

BR1 Advertising 2000

Online Sales 4000

BR2 Product Support 1000

Technical Support 500

Recently, company has experienced huge growth in their business, and need to employ more employees who will need more devices (hosts). Company is expecting 40% growth.

You are required to recalculate IP addressing scheme for this network to accommodate 40% growth, for example; Sales department will grow by 6400 hosts. Also provide subnets for inter router connections

which should have subnet mask 255.255.255.252

Use network ID 180.XY.0.0/16 (where XY are last digits of your student ID).

TASK - Write a 800 words report explaining:

• The detailed design of a simple addressing solution (with diagram(s) and step by step workout of the calculations) that accommodate for growth, is easy to administer and has the minimum wastage of available IP address space.
• Provide IP addresses and Subnet Masks for all LAN and WAN interfaces.
• Suppose in further future, this company experience more growth, which leaves company with no option except upgrading this network from IPv4 to IPv6, investigate/explore the technical changes you may need to implement for such upgrade

Rationale
This assessment aims to assess the following learning objectives of this subject:
• be able to analyse IP addressing requirements and design an addressing scheme;
• be able to analyse the requirements of IP routing and choose appropriate routing methods;
• be able to demonstrate how internetworking devices obtain their network configuration;
• be able to explain how data flows through the Internet; and
• be able to ascertain and evaluate selection of applications and protocols for transferring data across the internet

Reference no: EM132277133

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Reviews

len2277133

4/8/2019 1:55:02 AM

This assessment task will assess the following learning outcome/s: be able to analyse IP addressing requirements and design an addressing scheme. be able to analyse the requirements of IP routing and choose appropriate routing methods. be able to demonstrate how internetworking devices obtain their network configuration. be able to explain how data flows through the internet. be able to ascertain and evaluate selection of applications and protocols for transferring data across the internet.

4/8/2019 1:54:41 AM

Marking criteria and standards Question 1 HD In depth use of a good range of relevant literature to address the points. Provides a comprehensive comparison of 051 reference model with TCP/IP networking model, with evidence of synthesis of own research and prescribed reading in topics. Question 2 Projects are completed, screenshots of all steps along with informative description has been provided. Question 3 Clear, comprehensive description of ARP. Critical points identified & discussed. Question 4 Provides a complete, clear, and detailed, step-by-step description of IP addressing requirement analysis and design that fully and accurately fulfills the requirements. Diagram/s are appropriate and accurate. Identifies and analyses all critical points.

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