Operating System Mcqs

Page No. 50

Which mechanism is used by worm process?


aTrap door


bFake process


cSpawn Process


dVAX process


View Answer Spawn Process

What is trap door?


aIT is trap door in WarGames


bIt is a hole in software left by designer


cIt is a Trojan horse


dIt is a virus which traps and locks user terminal



What is Trojan horse?


aIt is a useful way to encrypt password


bIt is a user which steals valuable information


cIt is a rogue program which tricks users


dIt’s a brute force attack algorithm



What is breach of availability?


aThis type of violation involves unauthorized reading of data


bThis violation involves unauthorized modification of data


cThis violation involves unauthorized destruction of data


dThis violation involves unauthorized use of resources



What is theft of service?


aThis type of violation involves unauthorized reading of data


bThis violation involves unauthorized modification of data


c This violation involves unauthorized destruction of data


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


cThis violation involves unauthorized destruction of data


dThis violation involves unauthorized use of resources



What is the breach of integrity?


aThis type of violation involves unauthorized reading of data


bThis violation involves unauthorized modification of data


cThis violation involves unauthorized destruction of data


dThis violation involves unauthorized use of resources



What is are two safe computing practices?


aNot to open software from unknown vendors


bOpen and execute programs in admin level/root


cOpen and execute programs in presence of antivirus


dNone of the mentioned



What is known as a sandbox?


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


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


cIt is a special mode of antivirus


dNone of the mentioned



How does an antivirus of today identify viruses?


aPreviously known patterns


bIt can detect unknown patterns


cIt can take high priority to increase scanning speed


dNone of the mentioned



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