Which type of virus inserts unwanted text into documents and reduce the functionality of the computer?

Which virus corrupts files and programs that are opened,closed,copied or renamed?

What type of virus resides in the RAM?

Which type of scan is used to scans a file,drive or entire computer at any time?

Which type of virus enters the computer through a network like internet while downloading or surfing various websites?

Which anti -virus is used to remove trojan horse,worms,viruses etc?

Which application program detects and removes viruses from your system?

Which type of  virus displays screen messages and destroys data?

Which is the most commonly used antivirus software?

Worm is one of the common computer