Operating System Mcqs

Page No. 95

In domain structure what is Access-right equal to?


aAccess-right = object-name, rights-set

✓


bAccess-right = read-name, write-set

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cAccess-right = read-name, execute-set

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dAccess-right = object-name, execute-set

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In UNIX, domain switch is accomplished via _____________


afile system

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buser

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csuperuser

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dnone of the mentioned

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View Answer file system

Which one of the following is capability based protection system?


ahydra

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bCambridge CAP system

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cboth hydra and Cambridge CAP system

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dnone of the mentioned

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For a domain _______ is a list of objects together with the operation allowed on these objects.


acapability list

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baccess list

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cboth capability and access list

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dnone of the mentioned

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View Answer capability list

Global table implementation of the matrix table contains _____________


adomain

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b object

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cright-set

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dall of the mentioned

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View Answer all of the mentioned

Access matrix model for user authentication contains _____________


aa list of objects

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ba list of domains

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ca function which returns an object’s type

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dall of the mentioned

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View Answer all of the mentioned

If the set of resources available to the process is fixed throughout the process’s lifetime then its domain is _____________


astatic

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bdynamic

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cneither static nor dynamic

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dnone of the mentioned

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View Answer static

The protection domain of a process contains _____________


aobject name

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brights-set

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cboth object name and rights-set

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dnone of the mentioned

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For system protection, a process should access _____________


aall the resources

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bonly those resources for which it has authorization

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cfew resources but authorization is not required

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dall of the mentioned

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_______ is an approach to restricting system access to authorized users.


aRole-based access control

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bProcess-based access control

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cJob-based access control

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dNone of the mentioned

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