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Welcome to the Protection and Security MCQs Page

Dive deep into the fascinating world of Protection and Security with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Protection and Security, a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of Protection and Security, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through Protection and Security. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Protection and Security. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Protection and Security MCQs | Page 12 of 14

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Q111.
What is role of base/bound registers ?

a.

They give starting address to a program

b.

Program’s addresses are neatly confined to space between the base and the bound registers

c.

They provide encrypted environment

d.

This technique doesn’t protects a program’s address from modification by another user

Discuss
Answer: (b).Program’s addresses are neatly confined to space between the base and the bound registers
Q112.
What is all-or-nothing situation for sharing in memory ?

a.

Program makes all its data available to be accessed

b.

It prohibits access to some

c.

It creates rules who can access program memory

d.

It separates program memory and data memory

Discuss
Answer: (a).Program makes all its data available to be accessed
Q113.
How is disadvantage of all-or-nothing approach overcome ?

a.

Base/Bound

b.

Relocation technique

c.

Fence method

d.

Tagged architecture

Discuss
Answer: (d).Tagged architecture
Q114.
What is true regarding tagged architecture ?

a.

Every word of machine memory has one or more extra bits

b.

Extra bits are used to do padding

c.

Extra bits are not used to identify rights to that word

d.

It is very compatible to code upgrades

Discuss
Answer: (a).Every word of machine memory has one or more extra bits
Q115.
What is best solution to have effect of unbounded number if base/bound registers?

a.

Tagged architecture

b.

Segmentation

c.

Fence method

d.

None of the mentioned

Discuss
Answer: (b).Segmentation
Q116.
What is major feature of segmentation ?

a.

Program is divided in data memory and program memory

b.

Program is executed in segments

c.

Program is divided into pieces having different access rights

d.

It has effect of an unbounded architecture

Discuss
Answer: (c).Program is divided into pieces having different access rights
Q117.
What is correct way the segmentation program address is stored ?

a.

name, offset

b.

start, stop

c.

access, rights

d.

offset, rights

Discuss
Answer: (a).name, offset
Q118.
What is main objective of protection ?

a.

Ensure all objects are protected individually

b.

Objects have different priority and thus different levels of protection

c.

Ensure that each object is accessed correctly and only by allowed processes

d.

None of the mentioned

Discuss
Answer: (c).Ensure that each object is accessed correctly and only by allowed processes
Q119.
What is principle of least privilege ?

a.

Less privileges provide difficulty in executing admin tasks

b.

Users can get temporary high privilege access

c.

Users should be given just enough privileges to perform their tasks

d.

None of the mentioned

Discuss
Answer: (c).Users should be given just enough privileges to perform their tasks
Q120.
What is need of protection ?

a.

Prevent mischievous violation

b.

Prevent and intentional

c.

Ensure that each program component uses resources allotted to it only

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Page 12 of 14

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