Antivirus Software is an application software that is designed to prevent,search for,detect and remove viruses and other malicious software like worms,Trojans,adware and more.

It consists of computer programs that attempt to identify threats and eliminate computer viruses and other malware.

There are two common modes of password as follows:

(i)Weak Password: Easily remember just like names,birth dates,phone number etc.

(ii)Strong Password: Difficult to break and a combination of alphabets and symbols.

Some popular antivirus software

(i) Avast  (ii) K7   (iii) Nortron   (iv) Avg etc.

Hence, option A is correct.

Protection from Computer Virus

Virus:

Virus infects computer system if latest updated version of an Antivirus program is not installed.Latest Antivirus software should be installed on computer to protect it from viruses.

Antivirus Software:

It is an application software that is designed to prevent, search for, detect and remove viruses and other malicious software like worms, Trojans, adware and more. It consists of computer programs that attempt to identify threats and eliminate computer viruses and other malware.

Some popular antivirus software

(i) Avast    (ii) K7   (iii) Norton   (iv) Avg etc.

A computer system can be protected from virus by following these precautions:

• 1. The Antivirus software must be upgraded regularly.
• 2. The latest and updated version of Antivirus and firewall should be installed on the computer.
• 3. USB drives should be scanned for viruses and should not be used on infected computers.
• 4. Junk or unknown emails should not be opened and must be deleted straightaway.
• 5. Unauthorised or pirated software should not be installed on the computer.
• 6. An important way of protection against virus is the use of backup of data.
• 7. Freeware and shareware software from the internet normally contain viruses. It is important to check the software before using them.
• .8. Never click on suspicious links, never download songs, videos or files from suspicious websites.
• 9.When a password is entered,the computer system is careful not to display screen,in case other might see it.

In the Question:

Which of the following Statement is Correct?

(i)Virus infects computer system if latest updated version of an Antivirus program is installed. The virus will not infect the computer system.

(ii)Some popular antivirus software are Worms, Trojans, adware. These are some popular viruses.

(iii)Some Viruses are Avast, K7, Norton etc. These are examples of anti-virus softwares.

The Answer is None of these.

Hence the Option D is Correct.

Protection from Computer Virus

Virus:

Virus infects computer system if latest updated version of an Antivirus program is not installed.Latest Antivirus software should be installed on computer to protect it from viruses.

Antivirus Software:

It is an application software that is designed to prevent,search for,detect and remove viruses and other malicious software like worms,Trojans,adware and more.It consists of computer programs that attempt to identify threats and eliminate computer viruses and other malware.

Some popular antivirus software

(i) Avast

(ii) K7

(iii) Nortron

(iv) Avg etc.

A computer system can be protected from virus by following these precautions:

• 1. The Antivirus software must be upgraded regularly.
• 2. The latest and updated version of Antivirus and firewall should be installed on the computer.
• 3. USB drives should be scanned for viruses, and should not be used on infected computers.
• 4. Junk or unknown emails should not be opened and must be deleted straightaway.
• 5. Unauthorised or pirated software should not be installed on the computer.
• 6. An important way of protection against virus is the use of backup of data.
• 7. Freeware and shareware software from the internet normally contain viruses. It is important to check the software before using them.
• .8. Never click on suspicious links, never download songs, videos or files from suspicious websites.
• 9.When a password is entered,the computer system is careful not to display screen,in case other might see it.

In the Question:

A computer system can be protected from virus by following these precautions:

1. The Antivirus software must be upgraded regularly.

2. The latest and updated version of Antivirus and firewall should be installed on the computer.

3. USB drives should not be scanned for viruses, and should be used on infected computers.

4. Junk or unknown emails should not be opened and must be deleted straightaway.

Which of the following statement is Incorrect?

The Answer is Only iii.

Hence the Option B is Correct.