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MCQ

What is the need of protection?

Prevent mischievous violation

Prevent and intentional

Ensure that each program component uses resources allotted to it only

All of the mentioned

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MCQ

When an attempt is to make a machine or network resource unavailable to its intended users, the attack is called _____________

denial-of-service attack

slow read attack

spoofed attack

starvation attack

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MCQ

What is known as masquerading?

When one participant in communication pretends to be someone else

When attacker modifies data in communication

When attack is of fraudulent repeat of a valid data

When attack gains access to remote systems

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MCQ

What forces the user to change password at first login?

Default behavior of OS

Part of AES encryption practice

Devices being accessed forces the user

Account administrator

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MCQ

With regard to DOS attack what is not true from below options?

We can stop DOS attack completely

By upgrading OS vulnerability we can stop DOS attack to some extent

DOS attack has to be stopped at network level

Such attack can last for hours

Discussion

MCQ

What is false regarding Back-Pointers scheme to revoke capability?

List of pointers is maintained with each object

When revocation is required these pointers are followed

This scheme is not adopted in MULTICS system

These point to all capabilities associated with that object

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Introduction to Operating System

Types

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Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

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Operating Systems Overview

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Finding and Processing Files

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