Multiple Choice Questions & Answers on Operating System
Multiple Choice Questions & Answers on Operating System
1) What type of memory stores data in a swap file on a hard drive?
a) Secondary memory
b) Virtual memory
c) Low memory
d) RAM
Answer: Virtual memory
2) Which of the following "semaphore" can take the non-negative integer values?
a) Binary Semaphore
b) Counting Semaphore
c) Real Semaphore
d) All of the these
Answer: Counting Semaphore
3) In which directory the local user profile settings are stored by default in windows 2000?
a) C: \ USERS
b) C: \ NETLOGON
c) C: \ WIN NTUSER.DAT
d) C: \ Documents and settings
Answer: C: \ Documents and settings
4) Which of the following operating system does not require a command to run?
a) Kali Linux
b) Windows
c) Unix
d) All of the these
Answer: Windows
5) What is the full name of the IDL?
a) Interface definition language
b) Interface direct language
c) Interface data library
d) None of these
Answer: Interface definition language
6) What is bootstrapping called?
a) Cold boot
b) Cold hot boot
c) Cold hot strap
d) Hot boot
Answer: Cold boot
7) What is the fence register used for?
a) To disk protection
b) To CPU protection
c) To memory protection
d) None of these
Answer: To memory protection
8) If the page size increases, the internal fragmentation is also?
a) Decreases
b) Increases
c) Remains constant
d) None of these
Answer: Increases
9) Which of the following is a single-user operating system?
a) Windows
b) MAC
c) Ms-Dos
d) None of these
Answer: Ms-Dos
10) The size of virtual memory is based on which of the following?
a) CPU
b) RAM
c) Address bus
d) Data bus
Answer: Address bus
11) If a page number is not found in the translation lookaside buffer, then it is known as a?
a) Translation Lookaside Buffer miss
b) Buffer miss
c) Translation Lookaside Buffer hit
d) All of the mentioned
Answer: Translation Lookaside Buffer miss
12) Which of the following is not application software?
a) Windows 7
b) WordPad
c) Photoshop
d) MS-excel
Answer: Windows 7
13) Which of the following supports Windows 64 bit?
a) Window XP
b) Window 2000
c) Window 1998
d) None of these
Answer: Window XP
14) Which of the following windows does not have a start button?
a) Windows 7
b) Windows 8
c) Windows XP
d) None of these
Answer: Windows 8
15) Which of the following operating systems does not support more than one program at a time?
a) Linux
b) Windows
c) MAC
d) DOS
Answer: DOS
16) What else is a command interpreter called?
a) prompt
b) kernel
c) shell
d) command
Answer: shell
17) What is the full name of FAT?
a) File attribute table
b) File allocation table
c) Font attribute table
d) Format allocation table
Answer: File allocation table
18) BIOS is used?
a) By operating system
b) By compiler
c) By interpreter
d) By application software
Answer: By operating system
19) What is the mean of the Booting in the operating system?
a) Restarting computer
b) Install the program
c) To scan
d) To turn off
Answer: Restarting computer
20) When does page fault occur?
a) The page is present in memory.
b) The deadlock occurs.
c) The page does not present in memory.
d) The buffering occurs.
Answer: The page does not present in memory.
21) Which of the following binary formats support the Linux operating system?
a) 0 and 1
b) Binary Number Format
c) ELF Binary Format
d) None of the these
Answer: ELF Binary Format
22) What is Kali Linux?
a) Network device
b) Operating system
c) Server name
d) Computer name
Answer: Operating system
23) Which of the following statement is correct about fragmentation?
a) It is software that connects the OS.
b) It is part of the software.
c) Loss the memory
d) All of the these
Answer: Loss the memory
24) SSTF stands for ________.
a) Shortest Signal Time First
b) Shortest Seek Time First
c) System Seek Time First
d) System Shortest Time First
Answer: Shortest Seek Time First
25) The PCB is identified by ___________.
a) Real-Number
b) Binary Number
c) Store block
d) Integer Process ID
Answer: Integer Process ID
26) Which of the following method is used to prevent threads or processes from accessing a single resource?
a) PCB
b) Semaphore
c) Job Scheduler
d) Non-Contiguous Memory Allocation
Answer: Semaphore
27) Which of the following mechanisms is a locking mechanism?
a) Semaphore
b) PCB
c) Mutex
d) Binary Semaphore
Answer: Mutex
28) Which of the following statements is correct about virtual memory?
a) It is a combination of the logical-memory and physical-memory
b) It is a separation of user logical memory and physical memory
c) It is a virtual network memory
d) None of the these
Answer: It is a separation of user logical memory and physical memory
29) COW stands for __________
a) Compress of write memory
b) Copy overwrite
c) Compress overwrites
d) Computer of world
Answer: Copy overwrite
30) Who is responsible for keeping the process from the program?
a) Operating system
b) CPU
c) Monitor
d) All of the these
Answer: Operating system
31) Banker's algorithm is used?
a) To prevent deadlock
b) To deadlock recovery
c) To solve the deadlock
d) None of these
Answer: To prevent deadlock
32) When you delete a file in your computer, where does it go?
a) Recycle bin
b) Hard disk
c) Taskbar
d) None of these
Answer: Recycle bin
33) Which is the Linux operating system?
a) Private operating system
b) Windows operating system
c) Open-source operating system
d) None of these
Answer: Open-source operating system
34) What is the full name of the DSM?
a) Direct system module
b) Direct system memory
c) Demoralized system memory
d) Distributed shared memory
Answer: Distributed shared memory
35) Which method is the best among file allocation methods?
a) Linked
b) Contiguous
c) Indexed
d) None of the these
Answer: Indexed
36) The operating system work between
a) User and Computer
b) Network and User
c) One user to another user
d) All of the these
Answer: User and Computer
37) What is the paging in the operating system?
a) Memory management scheme
b) Network management scheme
c) Internet management scheme
d) None of the these
Answer: Memory management scheme
38) Which of the following programs is loaded first when starting a computer?
a) Window desktop
b) Network connection program
c) Operating system
d) CMD
Answer: Operating system
39) Which of the following backup methods is quickest and requires the least amount of backup space?
a) Complete backups
b) Incremental
c) Differential
d) None of the these
Answer: None of the these
40) Which of the following is not a type of directory structure?
a) Acyclic-graph directory structure
b) Single-level directory structure
c) Tree directory structure
d) Stack directory structure
Answer: Stack directory structure
41) Which of the following is not an operating system?
a) Windows
b) Linux
c) Oracle
d) DOS
Answer: Oracle
42) What is the maximum length of the filename in DOS?
a) 4
b) 5
c) 8
d) 12
Answer: 8
43) When was the first operating system developed?
a) 1948
b) 1949
c) 1950
d) 1951
Answer: 1950
44) When were MS windows operating systems proposed?
a) 1994
b) 1990
c) 1992
d) 1985
Answer: 1985
45) Which of the following is the extension of Notepad?
a) .txt
b) .xls
c) .ppt
d) .bmp
Answer: .txt
46) Which of the following is a condition that causes deadlock?
a) Mutual exclusion
b) Hold and wait, Circular wait
c) No preemption
d) All of these
Answer: All of these
47) Who provides the interface to access the services of the operating system?
a) API
b) System call
c) Library
d) Assembly instruction
Answer: System call
48) Where are placed the list of processes that are prepared to be executed and waiting?
a) Job queue
b) Ready queue
c) Execution queue
d) Process queue
Answer: Ready queue
49) Who among the following can block the running process?
a) Fork
b) Read
c) Down
d) All of these
Answer: All of these
50) Which of the following does not interrupt the running process?
a) Timer interrupt
b) Device
c) Power failure
d) Scheduler process
Answer: Device
51) Which of the following scheduling algorithm is non-preemptive scheduling?
a) SJF scheduling
b) Round-Robin scheduling
c) SRTF scheduling
d) None of these.
Answer: SJF scheduling
52) Which of the following scheduling reduces process flow time?
a) FCFS
b) LIFO
c) SJF
d) All of the these
Answer: LIFO
53) Consider the following three processes in the FCFS.
Process ID. Brust-time Arrival-time
P1 3 3
P2 6 6
P3 9 9
What is the average waiting time?
a) 2
b) 3
c) 4
d) 5
Answer: 3
54) How many types of buffer overflow in the operating system?
a) Two
b) Six
c) Seven
d) Five
Answer: Two
55) In which allocation method does the user size the file before creating the file?
a) Contiguous
b) Linked
c) Indexed
d) None of the these
Answer: Contiguous
56) Which of the following algorithms is used to avoid deadlock?
a) Dynamic Programming algorithm
b) Primality algorithms
c) Banker's algorithm
d) Deadlock algorithm
Answer: Banker's algorithm
57) Which of the following component does not belong to PCB (Process Control Block)?
a) CPU registers
b) CPU scheduling information
c) Operating System information
d) Accounting information
Answer: Operating System information
58) Which of the following method is used to improve the main memory utilization?
a) Swapping
b) Operating system
c) Memory stack
d) None of these.
Answer: Swapping
59) Buffer is a ___________.
a) Permanent area
b) Temporary area
c) Small area
d) Large area
Answer: Temporary area
60) Which of the following operating systems supports only real-time applications?
a) Batch OS
b) Distributed OS
c) Real-time OS
d) Network OS
Answer: Real-time OS
61) What is Microsoft window?
a) Operating system
b) Graphics program
c) Word Processing
d) Database program
Answer: Operating system
62) Which of the following is group of programs?
a) Accessories
b) Paint
c) Word
d) All of above
Answer: Accessories
63) Which of the following is an example of a Real Time Operating System?
a) MAC
b) MS-DOS
c) Windows 10
d) Process Control
Answer: Process Control
64) Which of the following operating systems do you use for a client-server network?
a) MAC
b) Linux
c) Windows XP
d) Windows 2000
Answer: Windows 2000
65) Which windows was introduced to My Computer?
a) Windows 10
b) Windows XP
c) Windows 95
d) Windows 98
Answer: Windows 95
66) What type of commands are required to perform various tasks in DOS?
a) Internal commands
b) External commands
c) Valuable commands
d) Primary commands
Answer: External commands
67) What is the number of characters contained in the primary name of the file of MS-DOS?
a) Up to 8 characters
b) 3 characters
c) Up to 10 characters
d) None of the above
Answer: Up to 8 characters
68) Which command is used to fetch a group (.doc) of files that have just been deleted?
a) Undelete
b) Undelete/all
c) Undelete *.doc
d) All of above
Answer: Undelete *.doc
69) Which of the following is system software?
a) Operating system
b) Compiler
c) Utilities
d) All of the above
Answer: All of the above
70) Which program runs first after booting the computer and loading the GUI?
a) Desktop Manager
b) File Manager
c) Windows Explorer
d) Authentication
Answer: Authentication
71) What is the use of directory structure in the operating system?
a) The directory structure is used to solve the problem of the network connection in OS.
b) It is used to store folders and files hierarchically.
c) It is used to store the program in file format.
d) All of the these
Answer: It is used to store folders and files hierarchically.
72) What type of scheduling is round-robin scheduling?
a) Linear data scheduling
b) Non-linear data scheduling
c) Preemptive scheduling
d) Non-preemptive scheduling
Answer: Preemptive scheduling
73) Which conditions must be satisfied to solve a critical section problem?
a) Bounded Waiting
b) Progress
c) Mutual Exclusion
d) All of these.
Answer: All of these.
74) Which of the following options is correct about the windows operating system?
a) Windows is a CUI operating system.
b) Windows is based on CUI.
c) Windows is a GUI operating system.
d) None of the these
Answer: Windows is a GUI operating system.
75) Which of the following file systems is supported by the windows OS?
a) NTFS
b) FAT32
c) exFAT
d) All of the these
Answer: All of the these
76) Which of the following keys does the user use to switch between applications running simultaneously in the Windows operating system?
a) FN + TAB
b) ALT + TAB
c) CTRL + TAB
d) SHIFT + TAB
Answer: ALT + TAB
77) Which of the following commands creates an emergency repair disk for Windows NT 4.0?
a) BAT
b) EXE
c) EXE/S
d) ADD/REMOVE program
Answer: EXE
78) Which of the following scheduling algorithms is preemptive scheduling?
a) FCFS Scheduling
b) SJF Scheduling
c) Network Scheduling
d) SRTF Scheduling
Answer: SRTF Scheduling
79) How can you get a printout of the system configuration on windows 9x OS?
a) Open the CMD window, type "MSDN", and press <printscrn>
b) From the device manager, click the print button
c) Open the CMD window, type "SYS", and press <printscrn>
d) None of the these
Answer: Open the CMD window, type "SYS", and press <printscrn>
80) Which of the following operating system runs on the server?
a) Batch OS
b) Distributed OS
c) Real-time OS
d) Network OS
Answer: Network OS
81) Which of the following operating systems require a command to run?
a) Kali Linux
b) Windows
c) Mac OS
d) Single-user operating system
Answer: Kali Linux
82) What type of memory stores data in a swap file on a hard drive?
a) Secondary memory
b) Virtual memory
c) Low memory
d) RAM
Answer: Virtual memory
83) What is the mean of the Booting in the operating system?
a) Restarting computer
b) Install the program
c) To scan
d) To turn off
Answer: Restarting computer
84) When does page fault occur?
a) The page is present in memory.
b) The deadlock occurs.
c) The page does not present in memory.
d) The buffering occurs.
Answer: The page does not present in memory.
85) Which of the following binary formats support the Linux operating system?
a) 0 and 1
b) Binary Number Format
c) ELF Binary Format
d) None of the these
Answer: ELF Binary Format
86) What is Kali Linux?
a) Network device
b) Operating system
c) Server name
d) Computer name
Answer: Operating system
87) How many types of buffer overflow in the operating system?
a) 2
b) 6
c) 7
d) 5
Answer: 2
88) Which of the following statement is correct about fragmentation?
a) It is software that connects the OS.
b) It is part of the software.
c) Loss the memory
d) All of the these
Answer: Loss the memory
89) Which of the following is not an operating system?
a) Windows
b) Linux
c) Oracle
d) DOS
Answer: Oracle
90) What is the maximum length of the filename in DOS?
a) 4
b) 5
c) 8
d) 12
Answer: 8
91) Which of the following is the extension of Notepad?
a) .txt
b) .xls
c) .ppt
d) .bmp
Answer: .txt
92) Which of the following is a condition that causes deadlock?
a) Mutual exclusion
b) Hold and wait, Circular wait
c) No preemption
d) All of these
Answer: All of these
93) Who provides the interface to access the services of the operating system?
a) API
b) System call
c) Library
d) Assembly instruction
Answer: System call
94) Where are placed the list of processes that are prepared to be executed and waiting?
a) Job queue
b) Ready queue
c) Execution queue
d) Process queue
Answer: Ready queue
95) Who among the following can block the running process?
a) Fork
b) Read
c) Down
d) All of these
Answer: All of these
96) Which of the following does not interrupt the running process?
a) Timer interrupt
b) Device
c) Power failure
d) Scheduler process
Answer: Device
97) Which of the following scheduling algorithm is non-preemptive scheduling?
a) SJF scheduling
b) Round-Robin scheduling
c) SRTF scheduling
d) None of these.
Answer: SJF scheduling
98) Which of the following scheduling reduces process flow time?
a) FCFS
b) LIFO
c) SJF
d) All of the these
Answer: LIFO
99) SSTF stands for Shortest Seek Time First
a) True
b) False
Answer: True
100) The PCB is identified by Integer Process ID
a) True
b) False
Answer: True
Comments
Post a Comment