Security Cryptography MCQs

10 MCQs — Operating System MCQs

Practice Security Cryptography 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 preferred way of encryption?

A. Pre shared secret key
B. Using key distribution center (kdc)
C. Public key-encryption
D. Symmetric key

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What is not a role of encryption?

A. It is used to protect data from unauthorized access during transmission
B. It is used to ensure user authentication
C. It is used to ensure data integrity
D. It is used to ensure data corruption doesn’t happens

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What is cipher-block chaining?

A. Data is logically ?anded’ with previous block
B. Data is logically ?ored’ with previous block
C. Data is logically ?xored’ with previous block
D. None of the mentioned

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What is not an encryption standard?

A. Aes
B. Tes
C. Triple des
D. Des

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Which of the following is not a stream cipher?

A. Two fish
B. Rc5
C. Rc4
D. Tbone

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What is a Hash Function?

A. It creates a small flexible block of data
B. It creates a small,fixed block of data
C. It creates a encrypted block of data
D. None of the mentioned

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MD5 produces __________ bits hash data.

A. 128
B. 150
C. 160
D. 112

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SHA-1 produces __________ bit of hash.

A. 128
B. 160
C. 150
D. 112

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Which two of the following are authentication algorithms?

A. Mac
B. Aes
C. Das
D. Digital-signature

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What is the role of Key Distribution Center?

A. It is used to distribute keys to everyone in world
B. It intended to reduce the risks inherent in exchanging keys
C. All of the mentioned
D. None of the mentioned

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