Unit 4 : Introduction to computer security

E-tivity 4.1 [2hours]

This e-tivity 4.1 helps you to clearly understand the concepts of computer system and file protection. It also helps you to master the basic concepts related to how you create, update, and remove computer “username” and “password”. 
Task
Open and read the information from this fruitful link:

How to protect document with a password  and respond to the following reflective questions on the discussion forum. You shall not use more than 100 words for each question.

•How can you protect your computers from unauthorized access? 
•What is “strong password”?
•Discuss the use of password during the sharing of files.
•Explain advantages and disadvantages of using Password.

Open a new MS Word document, protect it with a password, and by Wednesday at 23h00, post it on the discussion board for your group members to test it. You will also test password protection of files posted by your colleagues by Friday at 23h00. 

To get started here for e-tivity 4.1 , click inside the box labelled "Reply" below to open a window for your message. When you are done, click the "Post Reply" button. Be sure to read through the messages from others. and you can appreciate or suggest what is need for improvement, try replying to their posts and watch for replies to your own

E-tivity 4.2 [2 hours]

This e-tivity 4.2 intends to help you clearly understand the use of updated installed antivirus in computer systems. It also provides enough knowledge on scanning and updating Antivirus.
Read the article on the links:

computer virus and anti virus
basic computer security .

Reflect on the following questions and post your comments on the discussion board:

•What is a computer virus?
•What is a computer antivirus?
•What are the common types of computer virus?
•What are the common types of computer antivirus?
•Explain advantages and disadvantages of using antivirus.

Post the answers on the discussion board by Wednesday at 23h00 for comments from colleagues and then review your file

To get started here for e-tivity 4.2 , click inside the box labelled "Reply" below to open a window for your message. When you are done, click the "Post Reply" button. Be sure to read through the messages from others. and you can appreciate or suggest what is need for improvement, try replying to their posts and watch for replies to your own

E-tivity 4.3 [2 hours]

This e-tivity 4.3 intends to help you to understand very well the concepts of internal and external storages usage. It will also help you to master the basic concepts of checking the capacity, scanning and formatting internal and external storages.
Task:
Read this resource link remove shortcut virus with one click and respond to the following reflective questions on the forum board:

•Describe the use of internal and external storages.
•Describe the approaches used to scan internal and external storages.
•Explain the main difference between scanning and formatting.
•Explain advantages and disadvantages of scanning and formatting.

Post the answers on the discussion board by Wednesday at 23h30 for comments from colleagues and then review you file based on comments given and send final copy to e-moderators’ email by Friday at 23h30.