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Open Education Resource: Computer Networks and Security
Work done as part of AICTE approved FDP201x on Use of ICT in Education for Online and Blended Learning.
Mr. S. Jeba Anandh
Mrs. J. Banumathi
The creators of this OER are from Remote Centre 1026 – St. Xavier’s Catholic College of Engineering and they are working in University College of Engineering Nagercoil.
This work is licensed under a Creative Commons Attribution 4.0 International License..
A copy of the license is included with every copy of WordPress
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Table of Contents Page no.Section 1: Open Education Resource: Basics of Computer Networks 3
About the OER 3
Learning Objectives 3
Helpful Documentation for Tool Use 3
Section 2: Design Decisions 4
Nature of Decisions taken 4
Section 3: OER Description 5
Active OER 5
Lesson Settings 8
How to use this OER 9
Section 4: Evaluating Effectiveness of OER 10
Effectiveness at consumer level 10
Effectiveness at the student level 10
Section 5: Consolidated Log of Team Work 11
Section 6: Building a Community of MOODLE and Flipped Classroom
Adopters
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Section 7: Works Cited 12
Section 1: Open Education Resource: Basics of Computer Networks and Security
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ABOUT THE OER
The Open Education Resource is a openly licensed educational materials for teaching, learning, and research resources that reside in the public domain that are useful to understand the basics of Computer Networks. OER is built as a website using wordpress with the link “https://oercomputernetworksandsecurity.wordpress.com”
The OER is very useful learning platform for different types of learners who expect different learning process and hence it offers lessons in presentation slides (Only visual effect) as well as Videos (Multimedia effect) and course materials for different learners (eg.slow or fast). Students can download the materials available in the link mentioned above
Target Audience: Third year Engineering Students ( CSE & IT Domain) Tags: OSI layers, Network Topology, Network Connecting Devices, TCP, Network
Security Basics, RSA algorithm. OER developed by using WORDPRESS
LEARNING OBJECTIVES
The learning objectives for this OER are as follows:
LO1: To understand the basics of network topology
LO2: To understand the layering concept.
LO3: Illustrate different types of connecting devices
LO4: To understand the concept of TCP in detail
LO5: To know about the basic components of Network Security
LO6: To explain about RSA Alogorithm.
HELPFUL DOCUMENTATION FOR TOOL USER
[1] For design and development of Lesson Activity in YouTube (Creative Common Licence)[2] For use of consolidation: WORDPRESS [3] For assessment of consumers as feedback form: Google forms and Gnomio Moodle Site[4] For assessment of students in form of Quiz and Assignment: Quiz master and Gnomio Moodle SiteSection 2: Design Decisions
NATURE OF DECISIONS TAKEN
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The design decisions involved in the creation of this OER were of broadly three types:1. Content Decisions2. Pedagogic Decisions3. Technology Decisions
Content Decisions
Nowadays, data and information communication plays a vital role in the world. A computer network or data network is a digital telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.
In the computer network, devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other. In most cases, application-specific communications protocols are layered (i.e. carried as payload) over other more general communications protocols.
Computer networks support an enormous number of applications and services such as access to the World Wide Web, digital video, digital audio, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications as well as many others. Computer networks differ in the transmission medium used to carry their signals, communications protocols to organize network traffic, the network's size, topology and organizational intent. The best-known computer network is the Internet. In order to provide security to the data in the Internet, network security is very much needed. Hence the content decisions are OSI layers, Network Topology, Network Connecting Devices, TCP, Network Security Basics, RSA algorithm. It is much useful for beginners in network.
Pedagogic Decisions
Different teaching methodologies are needed for different learners (slow and fast) to understand the concept efficiently. Hence this OER offers content through presentation slides in visual effect and videos as well as course materials.
Cognitive Levels of Questions to be asked along with the resources – Mostly Recall to Apply level question which are inserted in the learning materials itself.
Separate Assessment Strategies – Multiple choice questions for recall level are given in quizstar.
Technology Decisions:
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While developing the Out-of-Class and In-class activities, the major technology decisions taken were:a. Tool used for creating screencast – Screen o matic b. Tool used for slides –MS Power pointc. Tool used for assessment – Quizstar and Gnomio Moodle Sited. Tool used for feedback –Google forms and Gnomio Moodle Sitee. Tool used to upload created screencast – Youtube.
Section 3: OER Description
ACTIVE OER
Link to OER: https://oercomputernetworksandsecurity.wordpress.com”
Write the url wordpress.com in address bar of the browser and click get started. The software like Screen-O-Matic, QuizStar, YouTube, Google forms are used in this web hosting. The following are some of the screen shots taken while working on this software.
WORKING WITH WORDPRESS:
Create a website using word press
Select the required website layout such as education
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Click “start with the website” Write the domain name whatever we need Select the plan for the website Finally select the theme for the website.
Customizing the word press
Click edit and customize. The required content of the web page are added in the OER. Sample screenshots of word press are given below. The site itself guides the user to
develop the webpage and hence it is simple to use.
As the working with screen casting software is well defined in previous works clearly, that part is omitted in this report.
Gmail is mandatory for generating google forms. For every gmail account these forms can be generated at free of cost and can be used as feedback form which is used to measure the effectiveness of OER from consumer point of view.
WORKING WITH GOOGLE FORMSGoogle forms can be used for variety of data entry options. This OER contains a
Google form that allows students to provide feedback and suggestions on the topics they learn through this OER.
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WORKING WITH QUIZSTAR
Login to the website http://quizstar.4teachers.org/indexs.jsp and register as a instructor. Select the domain and prepare a quiz. The quiz can be attempted by students from their login and the detailed report can be viewed from the instructor login.
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LESSON SETTINGS
TEACHING - LEARNING CONTEXT:
The licence learning materials are useful for the students to get the knowledge about the basic concepts of computer networks and security. Student can reuse and download the learning material many number of times. At the end of the day 5, they should attend the assessment in the form of quiz in QuizStar site create their own login and select the class CSE & IT and solve the application in design problems. Finally students submit their feedback through Google forms.
LO1: To understand the basics of network topology
LO2: To understand the layering concept.
LO3: Illustrate different types of connecting devices
LO4: To understand the concept of TCP in detail
LO5: To know about the basic components of Network Security
LO6: To explain about RSA Alogorithm.
Day 1:
Learning Objective 1:
To understand the basics of network topology.
Students are expected to watch the GIVEN video in the link in wordpress site oercomputernetworksandsecurity.wordpress.com
Students are expected to attend simple assessment questions in QuizStar by learning materials.
Day 2:
Learning Objective 2:
To understand the layering concept
Students are expected to watch the given video in the link oercomputernetworksandsecurity.wordpress.com
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Students are expected to attend simple assessment questions in QuizStar by learning materials.
Day 3 :
Learning Objective 3:
Illustrate different types of connecting devices Students are expected to watch the given video in the link
Students are expected to watch the given video in the link oercomputernetworksandsecurity.wordpress.com
Day 4 :
Learning Objective 4:
To understand the concept of TCP in detail
Students are expected to watch the given video in the link oercomputernetworksandsecurity.wordpress.com
Day 5 :
Learning Objective 5:
To know about the basic components of Network Security
Students are expected to watch the given video in the link oercomputernetworksandsecurity.wordpress.com
Day 6 :
Learning Objective 6:
To explain about RSA Alogorithm.
Students are expected to watch the given video in the link oercomputernetworksandsecurity.wordpress.com
HOW TO USE THIS OER:
OER has to be used according to the learning materials. The lessons for six days are available. The YouTube link is clearly given in the website and students has to click and download the materials in a sequence as stated. At seventh day, assessment is provided. Feedback form for further improvement is also provided in the website.
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Section 4: Evaluating Effectiveness of OER
Measuring the effectiveness of OER at consumer level and student level
1) CONSUMER LEVEL
Post your valuable feedback by clicking the following link
https://docs.google.com/forms/d/1ovy7vtryDs2T47OFKVk2T4pDs1zJTvA8nlQpe8wqecI
The following questions are asked
Whether information transferred through wordpress website is useful *o Yes
o No
o Maybe
o Other:
Is this learning materials are useful? *
Any other suggestions feel free to give. *
The answers are Yes No
2) STUDENT LEVEL
Click the following link and assess yourself.http://quizstar.4teachers.org/servlet/quizrepositoryservlet
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Section 5: Consolidated Log of Team Work
DIARY OF ACTIVITIES OF TEAM MEMBERS
S.No Activity Time span S. Jeba Anandh J. Banumathi
1 Formulation 09.10.2017 - 25.10.2017
Formulated a strategy on how the Webpage is created for OER and the contents to be added in it
Formulated a strategy on how the Webpage is created for OER and the contents to be added in it
2 Tool Exploration 26.10.2017 – 31.10.2017
Information are gathered Information are gathered
3 OER Creation 01.11.2017 – 09.11.2017
Learning resources are created
Learning materials are created
4 OERDocumentation
03.11.2017 – 09.11.2017
Created and embedded OER contents in the OER website
Created and embedded OER contents in the OER website
Meeting details
S.No Date & Time Discussions Action plan Target Action taken report of previous meeting
1 08.10.2017 Group formulation To regular Conduct meeting
09.10.2017 – 25.10.2017
NA
2 09.10.2017 Web page design videos and ppt created
18.10.2017 Conduct meeting regularly.
3 20.10.2017 Webpage- assessment Upload in wordpress
25.10.2017 Web page is created
4 25.10.2017 Form presentation Submit presentation in site
25.10.2017 Learning of wordpress
5 26.10.2017 Assessment- prepared Submit the presentation
26.102017 Remind the certain actions
6 03.11.2017 OER creation Learning materials, quiz and google forms are created
08.11.2017 -09.11.2017
Learning materials are prepared using ICT tools
7 08.11.2017 OER Documentation Review with the team member
08.11.2017 -09.11.2017
Learning materials are prepared using ICT tools
8 09.11.2017 Working & Review of OER creation
15-11-17 Launch OER
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Also the team members had frequent discussions over telephones and the required materials are e-mailed among themselves.
Section 6: Building a Community of MOODLE
A community yet to be build after launching the OER in this case.
Section 7: WORKS SITED
1. WORDPRESS.com(2013) https://digitalbasicssite.wordpress.com ([online]2. Google forms 3. Quizstar : http://quizstar.4teachers.org/indexs.jsp4. Screen- o- matic , screencasting software5. Cryptography and Network Security, Principles and Practice, William Stallings, 3rd
Edition.6. Data and Communication, Forouzan, 4th Edition.7. Gnomio Moodle.8. Google YouTube9. Wikipedia.
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