MCQs of Security & Protection (Operating System - 3140702)

Showing 1 to 10 out of 33 Questions

Which principle states that programs, users and even the systems be given just enough privileges to perform their task?

(a)	Principle of operating system
(b)	Principle of least privilege
(c)	Principle of process scheduling
(d)	None of the mentioned

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

(a)	Role-based access control
(b)	Process-based access control
(c)	Job-based access control
(d)	None of the mentioned

For system protection, a process should access _____________

(a)	all the resources
(b)	few resources but authorization is not required
(c)	only those resources for which it has authorization
(d)	All of the mentioned

The protection domain of a process contains _____________

(a)	object name
(b)	rights-set
(c)	both object name and rights-set
(d)	None of the mentioned

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

(a)	static
(b)	dynamic
(c)	neither static nor dynamic
(d)	both static as well as dynamic

Access matrix model for user authentication contains _____________

(a)	a list of objects
(b)	a list of domains
(c)	a function which returns an object’s type
(d)	All of the mentioned

In domain structure what is Access-right equal to?

(a)	Access-right = read-name, write-set
(b)	Access-right = object-name, rights-set
(c)	Access-right = read-name, execute-set
(d)	Access-right = object-name, execute-set

What does the access matrix represent?

(a)	Rows-Domains, Columns-Objects
(b)	Rows-Objects, Columns-Domains
(c)	Rows-Access List, Columns-Domains
(d)	Rows-Domains, Columns-Access list

Who can add new rights and remove some rights?

10.

Which of the following objects require protection?

Showing 1 to 10 out of 33 Questions