What are the two most common types of computer viruses?
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Computer viruses are a lot like biological ones. Once they find a suitable host, they can replicate themselves and spread their disease to others. Both types prey on weakened defense systems and the best way to fight them off is to render them non-infective and then build up immunity. For computers, the best way to do this is to periodically replace outdated antivirus software. Show
To date, computer engineers have identified three major types of viruses, which can be further divided into many separate subcategories. They include:
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How do computer viruses spread on a computer?The general method to spread computer virus as executable files is by email. If the user opens the email and clicks on the file, the virus enters the system and affects its performance. A computer virus is also spread using USB drives, storage disks, and removable hard disks.
What are the two types of resident virus?There are two types of resident virus: the fast infector and slow infector. Fast infectors are easy to detect due to their impact as they try to infect as many files as possible in the shortest amount of time. Slow infectors are more challenging to detect since their impact is slower and takes longer to catch.
How does a computer virus affect the system?The virus typically spreads via multiple methods and can affect the infected system in a variety of ways depending on the OS and presence of certain files. The virus can infect both the boot sector and executable files while causing maximum havoc on the system.
What are the two types of computer virus?Types of Computer Virus. 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. ... . Direct Action Virus – When a virus attaches itself directly to a .exe or .com file and enters the device while its execution is called a Direct Action Virus.. What is the most common type of computer virus?1. Macro Viruses. One of the most common types of computer viruses are macro viruses which are designed to attach themselves to files that support shortcut codes that can be executed with a keystroke, such as Word documents and Excel spreadsheets.
What are the 3 types of computer viruses?There are three types of computer viruses:. Macro viruses: A macro virus can attack various applications and eventually cause a sequence of actions to start automatically when the infected program is opened. ... . Boot record infectors: ... . File infectors:. |
