Security Program System Threats MCQs

16 MCQs — Operating System MCQs (Page 1 of 2)

Practice Security Program System Threats MCQs with correct answers and explanations. These questions are from the Operating System MCQs section.

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Operating System Subcategories

Application Io Interface 1	Application Io Interface 2
Atomic Transactions	Basics
Classic Sync Problems	Communication Systems Bandwidth Transmission Medium
Cpu Scheduling	Cpu Scheduling 2
Cpu Scheduling Algorithms 1	Cpu Scheduling Algorithms 2
Cpu Scheduling Benefits	Critical Section Problem
Deadlock	Deadlock Avoidance
Deadlock Detection	Deadlock Prevention
Deadlock Recovery	Disk Management
Disk Scheduling 1	Disk Scheduling 2
Distributed File System	Distributed Operating System
Distributed Synchronization	File System 1
File System Allocation Methods 1	File System Allocation Methods 2
File System Allocation Methods 3	File System Concepts
File System Free Space Performance	File System Implementation
File System Interface Access Methods 1	File System Interface Access Methods 2
File System Interface Directory Structure 1	File System Interface Directory Structure 2
File System Interface Mounting Sharing	File System Interface Protection
File System Recovery	Inter Process Communication
Io Subsystem	Kernel Io Subsystems
Linux	Mass Storage Raid 1
Mass Storage Raid 2	Mass Storage Tertiary Storage
Memory Allocation 1	Memory Allocation 2
Memory Management	Memory Management Paging 1
Memory Management Paging 2	Memory Management Segmentation
Memory Management Swapping 1	Memory Management Swapping 2
Multi Threading Models	Multimedia System Compression 1
Multimedia System Compression 2	Multimedia System Compression 3
Multimedia System Cpu Disk Scheduling	Multimedia System Network Management
Network File System 1	Network File System 2
Network Structure Topology	Operating System
Process Control Block	Process Creation
Process Rpc	Process Scheduling Queue
Process Structures	Process Sync Monitors
Process Synchronization	Processes
Protection Access Matrix	Protection Concepts
Protection Memory Protection	Protection Revocation Access Rights
Robustness	Rtos
Secondary Storage	Security
Security Cryptography	Security Intrusion Detection
Security Program System Threats	Security System Facility
Security User Authentication	Semaphores 1
Semaphores 2	Swap Space Management
Threads	Threads Cancellation
Threads Fork Exec	Threads Pools
Threads Signal Handling	Threads Ult Klt
Two Port Network	Virtual Memory
Virtual Memory Demand Paging	Virtual Memory Frame Allocation
Virtual Memory Page Replacement Algorithms 1	Virtual Memory Page Replacement Algorithms 2
Virtual Memory Thrashing

What is the breach of integrity?

A. This type of violation involves unauthorized reading of data
B. This violation involves unauthorized modification of data
C. This violation involves unauthorized destruction of data
D. This violation involves unauthorized use of resources

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What is breach of confidentiality?

A. This type of violation involves unauthorized reading of data
B. This violation involves unauthorized modification of data
C. This violation involves unauthorized destruction of data
D. This violation involves unauthorized use of resources

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What is theft of service?

A. This type of violation involves unauthorized reading of data
B. This violation involves unauthorized modification of data
C. This violation involves unauthorized destruction of data
D. This violation involves unauthorized use of resources

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What is breach of availability?

A. This type of violation involves unauthorized reading of data
B. This violation involves unauthorized modification of data
C. This violation involves unauthorized destruction of data
D. This violation involves unauthorized use of resources

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What is Trojan horse?

A. It is a useful way to encrypt password
B. It is a user which steals valuable information
C. It is a rogue program which tricks users
D. It’s a brute force attack algorithm

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What is trap door?

A. It is trap door in wargames
B. It is a hole in software left by designer
C. It is a trojan horse
D. It is a virus which traps and locks user terminal

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Which mechanism is used by worm process?

A. Trap door
B. Fake process
C. Spawn process
D. Vax process

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Which of the following is not a characteristic of a virus?

A. Virus destroy and modify user data
B. Virus is a standalone program
C. Virus is a code embedded in a legitimate program
D. Virus cannot be detected

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What is known as masquerading?

A. When one participant in communication pretends to be someone else
B. When attacker modifies data in communication
C. When attack is of fraudulent repeat of a valid data
D. When attack gains access to remote systems

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Who unleashed famous worm attack in 1988 which effected UNIX systems and caused losses in millions?

A. Robert morris
B. Bob milano
C. Mark zuckerberg
D. Bill gates

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