a. Write the reasons of virus development.
Ans: The main reasons of virus development are listed below:
b. List any four types of common computer viruses.
Ans: Four types of common computer viruses are:
1. Boot Sector Virus
2. File Infector Virus
3. Multipartite Virus
4. Macro Virus
5. Email Virus
c. Define the term virus in terms of computer sector.
Ans: A computer virus is a man-made harmful and destructive program that infects computer hardware and software(data, file, programs, etc.).
d. What type of virus is multipartite?
Ans:
e. What is antivirus? Write any two examples.
Ans: An anti-virus is a utility software designed to protect the computer or network against computer viruses. E.g: Kaspersky Anti-Virus, Norton Anti-Virus, Quick Heal Anti-Virus, etc.
f. Mention any four preventive measures from computer viruses.
Ans: Computer viruses are very harmful to computer system. They can destroy data and information. So, The computer system can be protected from the viruses by the following ways:
Ø We should install latest and updated anti-virus software from a well-known reputed company.
Ø We should Lock the computer system using strong password.
Ø We should scan the computer regularly with anti-virus software.
Ø We shouldn't use open Wi-Fi without being secure.
Ø We should backup the data ans software on a regular basis.
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