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51.

Which is an unsolvable problem in access-matrix?(a) Owner override(b) Brute force(c) Access denied(d) ConfinementThe question was posed to me in an internship interview.My enquiry is from Protection topic in portion Protection of Operating System

Answer» RIGHT ANSWER is (d) Confinement

To EXPLAIN: NONE.
Discussion
52.

Which two rights allow a process to change the entries in a column?(a) copy and transfer(b) copy and owner(c) owner and transfer(d) deny and copyI have been asked this question in exam.My doubt is from Protection in portion Protection of Operating System

Answer» RIGHT ANSWER is (a) COPY and transfer

Explanation: NONE.
Discussion
53.

What are the three copyrights?(a) copy(b) transfer(c) limited copy(d) all of the mentionedI have been asked this question in my homework.The query is from Protection topic in section Protection of Operating System

Answer»

The CORRECT CHOICE is (d) all of the mentioned

The BEST EXPLANATION: NONE.
Discussion
54.

Who can add new rights and remove some rights?(a) copy(b) transfer(c) limited copy(d) ownerThe question was posed to me during an interview.The question is from Protection in section Protection of Operating System

Answer» CORRECT OPTION is (d) owner

Best EXPLANATION: NONE.
Discussion
55.

What are the three additional operations to change the contents of the access-matrix?(a) copy(b) Owner(c) control(d) all of the mentionedI got this question in an online quiz.This interesting question is from Protection in division Protection of Operating System

Answer»

The CORRECT ANSWER is (d) all of the mentioned

The BEST EXPLANATION: NONE.
Discussion
56.

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 listThe question was asked in an international level competition.The origin of the question is Protection in section Protection of Operating System

Answer»

The CORRECT OPTION is (a) Rows-Domains, Columns-Objects

Explanation: NONE.
Discussion
57.

What is Domain?(a) Domain = Set of all objects(b) It is a collection of protection policies(c) Domain= set of access-rights(d) None of the mentionedThis question was addressed to me during an interview.My question is taken from Protection topic in chapter Protection of Operating System

Answer»

The correct option is (C) DOMAIN= set of access-rights

The EXPLANATION: None.
Discussion
58.

What is meaning of right-set?(a) It is a subset consist of read and write(b) It is a subset of all valid operations that can be performed on the object(c) It is a subset consist of read, write and execute(d) None of the mentionedI have been asked this question in homework.Enquiry is from Protection in section Protection of Operating System

Answer»

Right OPTION is (b) It is a subset of all VALID OPERATIONS that can be PERFORMED on the object

Best EXPLANATION: None.
Discussion
59.

In domain structure what is Access-right equal to?(a) Access-right = object-name, rights-set(b) Access-right = read-name, write-set(c) Access-right = read-name, execute-set(d) Access-right = object-name, execute-setI had been asked this question during an online exam.My question comes from Protection topic in portion Protection of Operating System

Answer» CORRECT CHOICE is (a) Access-right = object-name, rights-set

Best EXPLANATION: NONE.
Discussion