Question

. What is difference between Boot sector virus and Resident virus? in short​

Answer 1

Answer:

Explanation:

Boot sector viruses infect the system area of a disk--that is, the boot record on floppy disks and hard disks. All floppy disks and hard disks (including disks containing only data) contain a small program in the boot record that is run when the computer starts up. Boot sector viruses attach themselves to this part of the disk and activate when the user attempts to start up from the infected disk. These viruses are always memory resident in nature. Most were written for DOS, but, all PCs, regardless of the operating system, are potential targets of this type of virus.

resident virus is a kind of computer virus that hides and stores itself within the computer memory, which then allows it to infect any file that is run by the computer, depending on the virus’ programming. A resident virus will load its replication module into memory so it does not need to be executed for it to infect other files, rather it activates whenever the operating system loads or operates a specific function.

Answer 2

Boot Sector Virus – It is a type of virus that infects the boot sector of floppy disks or the Master Boot Record (MBR) of hard disks. The Boot sector comprises all the files which are required to start the Operating system of the computer. The virus either overwrites the existing program or copies itself to another part of the disk.

A resident virus is a kind of computer virus that hides and stores itself within the computer memory, which then allows it to infect any file that is run by the computer, depending on the virus’ programming.

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