Operating System Subcategories

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

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

Explanation: Pre Shared key can be compromised and either party can be suspected. Likewise KDC or symmetric key can have breach which are undesirable. Public and private key encryption is a known industry standard.

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

Explanation: Encryption doesn’t have error correction or detection facility thus cannot be used to safeguard from data corruption.

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

What is not an encryption standard?

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

Which of the following is not a stream cipher?

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

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

MD5 produces __________ bits hash data.

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

SHA-1 produces __________ bit of hash.

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

Which two of the following are authentication algorithms?

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

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