info@uceagra.com
Student Enquery: +91 79005 25060
Franchise Enquery: +91 80771 91427
Work With Us
Home
(current)
Exam Portal
Online Test
Downloads
CCC Admit Card
CCC Form Apply
CCC Certificate
CCC Result
Typing Test
English Typing
Hindi Typing
Gallery
Videos
Contact us
Join us
About Us
Feedback
FAQ's
100 MCQ of Operating System
Question 1
Dual mode of operating system has
A) 1 Mode
B) 2 Modes
C) 3 Modes
D) 4 Modes
Question 2
Multi processor system gives a ?
A) Small system
B) Tightly coupled system
C) Loosely coupled system
D) Both A and B
Question 3
Logical extension of multi-programming operating system is ?
A) Time sharing
B) Multi tasking
C) Single programming
D) Both A and B
Question 4
Multiprocessor system have advantage of ?
A) Increased throughput
B) Expensive hardware
C) Operating system
D) Both A and B
Question 5
Scheduling of threads are done by ?
A) Input
B) Output
C) Operating System
D) Memory
Question 6
Multi-programming of the computer system increases ?
A) Memory
B) Storage
C) CPU Utilisation
D) Cost
Question 7
Another type of multiple –CPU system is the ?
A) Mini computer
B) Super computer
C) Clustered computer
D) Both A and B
Question 8
Interrupt table of pointer having addresses for each interrupt is located at ?
A) High Memory
B) Low Memory
C) Mid Memory
D) Both A and B
Question 9
Example of open source operating system is ?
A) Unix
B) Linux
C) Window
D) Both A and B
Question 10
Main memory is the computer system is also called ?
A) Non-Volatile
B) Volatile
C) Reserved
D) Large
Question 11
Controller of the computer system transfer data from device to ?
A) Buffers
B) Cache
C) Registers
D) Indexes
Question 12
When many users accesses mainframes this approach is called as ?
A) Resource Allocation
B) Word Processor
C) Dedicated Resource
D) Interface
Question 13
Accessing same data from storage of the computer system is provided by ?
A) Serial Clusters
B) Parallel Clusters
C) Beowulf Clusters
D) Both A and B
Question 14
To start an I/O operating the devise driver loads the appropriating register into ?
A) Memory
B) Second Storage
C) Device Controller
D) Arrays
Question 15
Symmetric multiprocessing architecture of the computer system uses shard ?
A) Bus
B) Memory
C) Processors
D) Both A and B
Question 16
In asymmetric clustering other machines perform operations while one machine is in ?
A) Hot Standby Mode
B) Standby Mode
C) Reset Mode
D) Undefined Mode
Question 17
The ability continuously providing service proportional to the level of surviving hardware.
A) Graceful up gradation
B) Degradation
C) Up-gradation
D) Graceful Degradation
Question 18
Secondary memory of the computer system is also called ?
A) Non-Volatile
B) Volatile
C) Reserved
D) Small
Question 19
Environment in which programs of the computer system are executed is ?
A) Operating System
B) Nodes
C) Clustered System
D) Both A and B
Question 20
One word memory storage is the collection of ?
A) 2 Bytes
B) 4 Bytes
C) 7 Bytes
D) 8 Bytes
Question 21
Each user of the computer system that uses computer service has at least ?
A) 1 program
B) 2 program
C) 3 program
D) 4 program
Question 22
Cluster of the computer system can be used more efficiently using ?
A) Serialization
B) Parallelization
C) LAN
D) WAN
Question 23
A properly designed operation system must ensure that an incorrect (or malicious ) program cannot cause other programs to execute ?
A) Incorrectly
B) Correctly
C) Both A and B
D) None
Question 24
Table of pointers for interrupt to be executed contains the ?
A) Interrupts
B) Programs
C) Addresses
D) Compilers
Question 25
The user view of the system depends upon the ?
A) CPU
B) Software
C) Hardware
D) Interface
Question 26
Memories by normally classified according to their ?
A) Speed
B) Cost
C) Indexes
D) Both A and B
Question 27
SCSI system is the addreviation of the ?
A) Small common system interface
B) Small common system interaction
C) Small computer system interface
D) Small computer system interaction
Question 28
Multi processing system of the computer system are of ?
A) 2 types
B) 3 types
C) 4 types
D) 5 types
Question 29
Clustered computer system are normally linked via?
A) LAN
B) WAN
C) PAN
D) TAN
Question 30
Kernel mode of operating system runs when the mode bit is ?
A) 1
B) 0
C) X
D) undefined
Question 31
kernel mode of the operating system is also called ?
A) user mode
B) system
C) supervisor mode
D) Both A and B
Question 32
Multi processer system of the computer system has advantage of ?
A) Cost
B) Reliability
C) Uncertainty
D) Scalability
Question 33
Time sharing system of the computer system have ?
A) Clusters
B) Nodes
C) File system
D) Both A and B
Question 34
One megabyte memory storage in the form of bytes is equal to ?
A) 1024 bytes
B) 1024 kilo bytes
C) 1056 bytes
D) 1058 kilo bytes
Question 35
One that is not is type of multiprocessor of the computer system is
A) Dual core
B) Blade server
C) Clustered system
D) Single core
Question 36
Beowulf clusters of the computer system are linked through
A) LAN
B) WAN
C) PAN
D) TAN
Question 37
One that is not a peripheral device of the computer system is?
A) Keyboard
B) Mouse
C) Printer
D) Register
Question 38
Instruction that are requested by the system are first ?
A) Fetched
B) Decoded
C) Executed
D) Deleted
Question 39
Each node in clustered system of the computer monitors ?
A) Itself
B) One other node
C)Neighboring node
D) One or more nodes
Question 40
A bit that selects the mode of the operating system is called ?
A) Kernel bit
B) User bit
C) Mode bit
D) System
Question 41
Process synchronization of programs is done by ?
A) Input
B) Out put
C) Operating system
D) Memory
Question 42
After fetching an instruction , the computer ?
A) Store it
B) Decodes it
C) Execute it
D) Deleted it
Question 43
More device can be connected to computer system through ?
A) Buffers
B) Interrupt
C) Register
D) Controllers
Question 44
System resources of computer system can be utilized better in ?
A) Single program environment
B) Dual program environment
C) Core environment
D) Multi program environment
Question 45
Static program of the computer system are stored in ?
A) RAM
B) ROM
C) Hard disk
D) CD
Question 46
High performance computing of the computer system tasks are done by ?
A) Node clusters
B) Network clusters
C) Beowulf clusters
D) Both A and B
Question 47
Octa-core processor are the processor of the computer system that contains ?
A) 2 processor
B) 4 processor
C) 6 processor
D) 8 processor
Question 48
Secondary memory of the computer system is able to store ?
A) Program
B) Data
C) Instructions
D) Both A and B
Question 49
Control processing unit loads instruction that are executed from ?
A) Hard ware
B) Shared resource
C) Memory
D) Both A and B
Question 50
For running TOPS-20 kernel simulator that is mainly used is ?
A) Decsystem-23
B)Decsystem-22
C) Decsystem-21
D) Decsystem-20
Question 51
One the is not a operating system mode is ?
A) User mode
B) Kernel mode
C) Supervisor mode
D) System mode
Question 52
Dynamic random access memory whit battery backup is ?
A) RAM
B) NVRAM
C) VNRAM
D) NVROM
Question 53
MB memory storage stands for ?
A) Meta byte
B) Meta data
C) Mega byte
D) Mega bit
Question 54
First process that is executed by operating system during booting is ?
A) Init
B) Initl
C) Mint
D) Start
Question 55
Multiprocessor environment of the computer system uses ?
A) Parallel resources
B) Dedicated resources
C) Shared resources
D) Both A and B
Question 56
A software generated interrupt caused by an error during executing is called ?
A) A trap
B) A program
C) A process
D) A malware
Question 57
DMA is the part of computer system which is the abbreviation of ?
A) Dynamic memory address
B) Direct memory access
C) Dynamic memory access
D) Direct memory address
Question 58
Quad core processor are the processor having ?
A) 1 processor
B) 2 processor
C) 3 processor
D) 4 processor
Question 59
Each blade server of the computer system has its own ?
A) Memory
B) Hard ware
C) Program
D) Operating system
Question 60
One byte memory storage is a collection of ?
A) Characters
B) Nibble
C) Bits
D) Words
Question 61
In operating system a software may triggers an interrupt executing a special operating it is called as ?
A) System call
B) Application call
C) Software call
D) Kernel call
Question 62
Workstation or server users uses what kind of resources ?
A) Dedicated resources
B) shared resources
C) hardware resources
D) software resources
Question 63
Memories that lose their contents when power of the computer system is turned off is called ?
A) Non volatile
B) Volatile
C) reserved
D) large
Question 64
The central processing unit of the computer system is never idle as long as it executes ?
A) 1 job
B) 2 jobs
C) 3 jobs
D) 4 jobs
Question 65
All components of computer system are connected through ?
A) Cache
B) Registers
C) path
D) bus
Question 66
Operating systems that can be modified and distributed are called ?....
A) close source
B) open source
C) free
D) both a and b
Question 67
Saving the data and making its copy for the future use is called ?
A) Backup
B) Copying
C) Pasting
D) Removing
Question 68
Symmetric multiprocessing in the computer system does not use ?
A) master relationship
B) slave relationship
C) master slave relationship
D) serial processing
Question 69
System containing only one processor is called ?
A) Multiprocessor
B) single processor
C) dual processor
D) specific processor
Question 70
The ability of an operating system is ?
A) Multiprocessor
B) Multiprogramming
C) Clustering
D) both a and b
Question 71
ISR is the interrupt program that stands for?
A) interrupt software routine
B) internally service routine
C) internal service routine
D) interrupt service routine
Question 72
One that is not a part of a computer system is ?
A) Hardware
B) operating system
C) users
D) vendors
Question 73
Along with kernel, operating system also contains ?
A) system application
B) software application
C) hardware resources
D) both a and b
Question 74
Job pool is the program of the operating system that is located in ?
A) RAM
B) ROM
C) hard disk
D) CD
Question 75
One nibble is the collection of ?
A) 2 components
B) 4-bits
C) 7-bits
D) 8-bits
Question 76
One that is referred as main memory is called ?
A) RAM
B) ROM
C) hard disk
D) CD
Question 77
NUMA related to computers, is an abbreviation of ?
A) uniform memory access
B) non uniform memory access
C) under memory access
D) non uniform module access
Question 78
A process needs ?
A) through put to execute
B) timer to execute
C) resources to execute
D) both a and b
Question 79
An executed program of the computer system is called ?
A) Trap
B) Process
C) Program
D) Interrupt
Question 80
Dual core processors are the processors having ?
A) 1 Processor
B) 2 Processor
C) 3 Processor
D) 4 Processor
Question 81
Response time in time sharing of operating system is usually?
A) 1sec
B) 1sec
C) less than 1sec
D) more than 1sec
Question 82
One that is not a part of a desktop computer is ?
A) Mouse
B) Monitor
C) Printer
D) Keyboard
Question 83
A single threaded process of operating system programs has ?
A) One program counter
B) Two program counters
C) Three program counters
D) Four program counters
Question 84
Process creation is handled by ?
A) Input
B) Output
C) operating system
D) memory
Question 85
In a time-sharing system the operating system must ensure reasonable response time which is accomplished through ?
A) Operating System
B) I/O Devices
C) Virtual memory
D) Swapping
Question 86
Division by zero error are caused by ?
A) user defined code
B) OS code
C) Process
D) Interrupt
Question 87
UMA related to computers, is an abbreviation of ?
A) uniform memory access
B) non uniform memory access
C) under memory access
D) uniform module access
Question 88
Jobs of the computer system for execution are loaded into ?
A) Device
B) Registers
C) Memory
D) both a and b
Question 89
For Orderly access to the shared memory a computer system uses ?
A) memory controllers
B) Microcontrollers
C) device controllers
D) macro controllers
Question 90
Interrupt mechanism for every computer system is ?
A) Same
B) Different
C) pre-defined
D) both a and b
Question 91
Dual core processor system of the computer system has ?
A) 2cores
B) 3cores
C) 4cores
D) 5cores
Question 92
All jobs of OS are not kept in main memory due to its small size so where they resides on disk ?
A) in RAM
B) in job pool
C) in ROM
D) in CD
Question 93
Loading of the operating system at the start is also called ?
A) versatile machine
B) clouding
C) versatile memory
D) booting
Question 94
Operating system of the computer system has simultaneously ?
A) 2 jobs
B) 3 jobs
C) 4 jobs
D) many jobs
Question 95
In symmetric multiprocessing system N number of CPU can run ?
A) N-1 processes
B) N+1 processes
C) N processes
D) N-2 processes
Question 96
A chip that allows a storage device to communicate with operating system is known as ?
A) Small Computer Systems Interface (SCSI)
B) Device Driver
C) I/O Structure
D) both a and b
Question 97
During execution how many interrupts are made per block ?
A) One
B) Two
C) Three
D) Four
Question 98
With multiprocessor approach of the computer system work is done in ?
A) more time
B) less time
C) uncertainty
D) scalability
Question 99
For avoiding programs of the operating system to get stuck, system users use ?
A) Trap
B) Timers
C) Process
D) Programs
Question 100
Initial program that run for starting the system is called ?
A) Virtualization
B) control program
C) bootstrap program
D) compilers