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Operating System — Test 22

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Question 1
Which mechanism is used by worm process?
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Question 2
Which of the following is not a characteristic of a virus?
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Question 3
What is known as masquerading?
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Question 4
Who unleashed famous worm attack in 1988 which effected UNIX systems and caused losses in millions?
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Question 5
What is port scanning?
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Question 6
Which is not a port scan type?
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Question 7
Which is not a valid port scan type?
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Question 8
What are zombie systems?
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Question 9
What is known as a DOS attack?
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Question 10
With regard to DOS attack what is not true from below options?
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