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

I/O hardware contains ____________

A. Bus
B. Controller
C. I/o port and its registers
D. All of the mentioned

The data-in register of I/O port is ____________

A. Read by host to get input
B. Read by controller to get input
C. Written by host to send output
D. Written by host to start a command

The host sets _____ bit when a command is available for the controller to execute.

A. Write
B. Status
C. Command-ready
D. Control

When hardware is accessed by reading and writing to the specific memory locations, then it is called ____________

A. Port-mapped i/o
B. Controller-mapped i/o
C. Bus-mapped i/o
D. None of the mentioned

Explanation: It is called memory-mapped I/O.

Device drivers are implemented to interface ____________

A. Character devices
B. Block devices
C. Network devices
D. All of the mentioned

Which hardware triggers some operation after certain programmed count?

A. Programmable interval timer
B. Interrupt timer
C. Programmable timer
D. None of the mentioned

The device-status table contains ____________

A. Each i/o device type
B. Each i/o device address
C. Each i/o device state
D. All of the mentioned

Which buffer holds the output for a device?

A. Spool
B. Output
C. Status
D. Magic

Which one of the following connects high-speed high-bandwidth device to memory subsystem and CPU.

A. Expansion bus
B. Pci bus
C. Scsi bus
D. None of the mentioned

A process is moved to wait queue when I/O request is made with ____________

A. Non-blocking i/o
B. Blocking i/o
C. Asynchronous i/o
D. Synchronous i/o