Operating System Mcqs

Page No. 50

Which mechanism is used by worm process?


aTrap door

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bFake process

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cSpawn Process

✓


dVAX process

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View Answer Spawn Process

What is trap door?


aIT is trap door in WarGames

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bIt is a hole in software left by designer

✓


cIt is a Trojan horse

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dIt is a virus which traps and locks user terminal

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What is Trojan horse?


aIt is a useful way to encrypt password

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bIt is a user which steals valuable information

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cIt is a rogue program which tricks users

✓


dIt’s a brute force attack algorithm

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What is breach of availability?


aThis type of violation involves unauthorized reading of data

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bThis violation involves unauthorized modification of data

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cThis violation involves unauthorized destruction of data

✓


dThis violation involves unauthorized use of resources

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What is theft of service?


aThis type of violation involves unauthorized reading of data

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bThis violation involves unauthorized modification of data

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c This violation involves unauthorized destruction of data

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dThis violation involves unauthorized use of resources

✓



What is breach of confidentiality?


aThis type of violation involves unauthorized reading of data

✓


bThis violation involves unauthorized modification of data

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cThis violation involves unauthorized destruction of data

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dThis violation involves unauthorized use of resources

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What is the breach of integrity?


aThis type of violation involves unauthorized reading of data

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bThis violation involves unauthorized modification of data

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cThis violation involves unauthorized destruction of data

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dThis violation involves unauthorized use of resources

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What is are two safe computing practices?


aNot to open software from unknown vendors

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bOpen and execute programs in admin level/root

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cOpen and execute programs in presence of antivirus

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dNone of the mentioned

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What is known as a sandbox?


aIt is a program which can be molded to do the desired task

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bIt is a program that is controlled or emulated section of OS

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cIt is a special mode of antivirus

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dNone of the mentioned

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How does an antivirus of today identify viruses?


aPreviously known patterns

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bIt can detect unknown patterns

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cIt can take high priority to increase scanning speed

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dNone of the mentioned

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