The first computer virus is --------
Answer: C
Correct answer: Creeper
Creeper, written in 1971 for the ARPANET, is generally counted the first computer virus: it copied itself between DEC PDP-10 machines and displayed the message I'm the creeper, catch me if you can. Blaster, Sasser and ILOVEYOU are all much later, from 2000 onwards.
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To protect a computer from virus, you should install -------- in your computer.
Answer: A
Correct answer: antivirus
Antivirus software scans files and memory for known malicious code and blocks or removes it. Disk defragmenter, disk cleanup and the backup wizard are maintenance tools and offer no protection against infection.
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Which of the following is known as Malicious software?
Answer: D
Correct answer: malware
Malware is the contraction of malicious software, and it covers viruses, worms, trojans, spyware and ransomware alike. The other three words are not terms in use.
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McAfee is an example of
Answer: C
Correct answer: Antivirus
McAfee is one of the long-established antivirus products, alongside Norton, Avast and AVG. Quick Heal is another antivirus rather than a category, which is why it cannot be the answer to a question about what kind of thing McAfee is.
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A ------- is a computer program that can invade computer and perform a variety of functions ranging from annoying(e.g. popping up messages as a joke) to dangerous (e.g. deleting files)
Answer: A
Correct answer: Computer Virus
A virus is code that attaches itself to a host program, spreads when that program runs, and carries a payload that may be trivial or destructive. Antivirus software is what opposes it, and Word and Access are ordinary applications.
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When a logic bomb is activated by a time related event, it is known as -------
Answer: B
Correct answer: time bomb
A logic bomb lies dormant until some condition is met. When the condition is a date or a time, it is called a time bomb - the Friday the 13th and Michelangelo viruses are the classic examples. A trojan horse is defined by disguise rather than by timing.
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-------- are often delivered to a PC through an email attachment and are often designed to do harm.
Answer: A
Correct answer: Virus
Viruses commonly arrive as email attachments, because opening the attachment runs the code. Spam is unwanted mail, which may or may not carry anything harmful, and a portal is a website.
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The altering of data so that it is not usable unless the changes are undone is
Answer: B
Correct answer: encryption
Encryption transforms data by a reversible algorithm so that it is unreadable without the key, and readable again once the transformation is undone. Compression also alters data reversibly but its purpose is to reduce size, not to conceal; biometrics identifies people and ergonomics concerns workplace design.
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VIRUS stands for
Answer: B
Correct answer: Vital Information Resource Under Siege
The usual expansion is Vital Information Resource Under Siege. It is a backronym invented after the fact - the word came from biology - but it is the one these questions expect.
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What is short for malicious software (is software designed to disrupt computer operation, gather sensitive information, or gain unauthorized access to computer systems)?
Answer: D
Correct answer: Malware
Malware is short for malicious software. The other three are invented words.
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