Io Subsystem MCQs

10 MCQs — Operating System MCQs

Practice Io Subsystem 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

I/O hardware contains ____________

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

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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

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

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

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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

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Device drivers are implemented to interface ____________

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

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Which hardware triggers some operation after certain programmed count?

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

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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

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Which buffer holds the output for a device?

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

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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

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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

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