COMPUTER SCIENCE AND ENGINEERING
OPERATING SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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blocking access until money is paid
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A piece of code that can copy itself and attack a computer
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Sends information covertly
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when someone steals your computer
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Detailed explanation-1: -A computer virus is malicious code that replicates by copying itself to another program, computer boot sector or document and changes how a computer works. A virus spreads between systems after some type of human intervention.
Detailed explanation-2: -A worm makes multiple copies of itself which then spread across the network or through an internet connection. These copies will infect any inadequately protected computers and servers that connect-via the network or internet-to the originally infected device.
Detailed explanation-3: -A computer virus is a type of malware that attaches to another program (like a document), which can replicate and spread after a person first runs it on their system. For instance, you could receive an email with a malicious attachment, open the file unknowingly, and then the computer virus runs on your computer.
Detailed explanation-4: -A computer virus is piece of computer code, usually hidden within a seemingly innocuous program, that replicates itself and inserts those copies into other programs or files. Viruses usually perform one or more malicious actions on the infected system (such as destroying data).
Detailed explanation-5: -"Malware” encompasses computer viruses along with many other forms of malicious software, such as computer “worms", ransomware, spyware, adware, trojan horses, keyloggers, rootkits, bootkits, malicious Browser Helper Object (BHOs), and other malicious software.