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

RAID level 3 supports a lower number of I/Os per second, because _______________

A. Every disk has to participate in every i/o request
B. Only one disk participates per i/o request
C. I/o cycle consumes a lot of cpu time
D. All of the mentioned

RAID level _____ is also known as block interleaved parity organisation and uses block level striping and keeps a parity block on a separate disk.

A. 1
B. 2
C. 3
D. 4

A performance problem with _________ is the expense of computing and writing parity.

A. Non-parity based raid levels
B. Parity based raid levels
C. All raid levels
D. None of the mentioned

In RAID level 4, one block read, accesses __________

A. Only one disk
B. All disks simultaneously
C. All disks sequentially
D. None of the mentioned

Explanation: Other requests are allowed to be processed by other disks.

The overall I/O rate in RAID level 4 is ____________

A. Low
B. Very low
C. High
D. None of the mentioned

Explanation: All disks can be read in parallel.

A write of a block has to access ____________

A. The disk on which the block is stored
B. Parity disk
C. A parity block
D. All of the mentioned

RAID level 5 is also known as ____________

A. Bit-interleaved parity organization
B. Block-interleaved parity organization
C. Block-interleaved distributed parity
D. Memory-style ecc organization

RAID level ____ spreads parity and data among all N+1 disks rather than storing data in N disks and parity in 1.

A. 3
B. 4
C. 5
D. 6

The potential overuse of a single parity disk is avoided in RAID level _______

A. 3
B. 4
C. 5
D. All of the mentioned

RAID level 0+1 is used because, RAID level 0 provides ______ whereas RAID level 1 provides ________

A. Performance, redundancy
B. Performance, reliability
C. Redundancy, performance
D. None of the mentioned