Which among the following affects the boot sector of a floppy or hard disk?

Which type of virus affects the boot sector of a floppy or hard disk?

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

What type of virus resides in the RAM?

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

What helps you to scan files,folders,drives etc for viruses?

Worm is one of the common computer 

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

VIRUS stands for 

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