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Which of the following are forms of malicious attack?

Theft of information

Modification of data

Wiping of information

All of the mentioned

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Access matrix model for user authentication contains _____________

a list of objects

a list of domains

a function which returns an object's type

all of the mentioned

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What is not true regarding

It is implemented via hardware register

It doesn

It good to protect OS from abusive users

Its implementation is unrestricted and can take any amount of space in Operating system.

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What is the reacquisition scheme to revoke capability?

When a process capability is revoked then it won

Pointers are maintained for each object which can be used to revoke

Indirect pointing is done to revoke object

Master key can be used compare and revoke.

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What is a trap door in a program?

a security hole, inserted at programming time in the system for later use

a type of antivirus

security hole in a network

none of the mentioned

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What are two safe computing practices?

Not to open software from unknown vendors

Open and execute programs in admin level/root

Open and execute programs in presence of antivirus

None of the mentioned

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category More Operating System Topics

Introduction to Operating System

Types

Services

Structures

Processes

Threads

CPU Scheduling

Process Synchronization

Memory Management

Storage Management

Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

Mixed

Operating Systems Overview

Process Management

Finding and Processing Files

File Management

Report Error

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Report Error

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