UPSC,PCS,CDS,NDA MCQ Quiz Hub

1. A unit of data storage that equals 2 to the 70th power is called? 
Zebibyte
Yottabite
Yobibite
None of the above

2. A file which has not been altered, compressed, or manipulated in any way by the computer is called? 
temp file
raw file
permanent file
None of the above

3. The word bandwidth is also used to mean ________? 
width of the data cable
amount of data transferred
number of the computers on a particular network
none of the above

4. Any piece of data can be returned in a constant time, regardless of its physical location and whether or not it is related to the previous piece of data using which of the following? 
RAM
ROM
CPU
Network interface card

5. Which of the following Key is not found in normal computers / laptops?
Turn key
Alt key
del key
shift key

6. When some unidentified / unknown person / firm sends you mail in a trustworthy /lucrative way asking for sensitive banks and online payment information, this is a case of __?
Spam
Hacking
Phishing
Vishing

7. ADSL data communications technology uses which of the following for faster data transmission?
Voiceband modem
Wireless Modem
Copper telephone Lines
Sockets

8. While browsing internet, what do we call the area of storage that compensates for the different speeds of data flow or timings of events by temporarily holding a block of data that is waiting to be processed? 
Cache
Buffer
 Flash
Trash

9. One nibble is equal to_?
4 Bits
4 Bytes
 8 Bytes
 8 Kilo Bytes

10. Which of the following lies within the CPU?
Primary Memory
 Secondary Memory
Mouse
Keyboard

11. Which among of the following was the world’s first electronic stored-program computer?
Colossus
 ENIAC
Manchester Baby
EDVAC

12. Who had designed and constructed the first recognizably modern digital stored-program computer?
 J. Lyons
John Newmann
Tom Kilburn
Maurice Wilkes

13. Which of the following was the first commercial computer?
Manchester Baby
Manchester Mark 1
EDVAC
Ferranti Mark 1

14. In what form is the data expressed in a digital computer?
Binary
Tertiary
Primary
Secondary

15. Which of the following are features of a subnotebook?
 Small physical dimensions
Larger than hand-held computers
Run complete versions of desktop/laptop OS
All of the above

16. What is the full form of UPS?
Unplugged Power Supply
Uninterruptible Power System
 Unknown Power Source
Uninterrupted Power Source

17. Which of the following devices provide a means of communication between a computer and outer world?
Input/Output
Storage
Compact
Compact

18. What is the full form of GUI ?
Graphical User Instruction
Ground User Interface
General User Instruction
Graphical User Interface

19. Which of the following devices is used for video games, flight simulators, training simulators and for controlling industrial robots?
Mouse
 Light pen
Joystick
Keyboards

20. In MICR, Which of the following is the meaning of C ?
Code
Colour
Computer
Character

21. What was the name of the first vacuum tube invented by Lee de Forest in 1906?
Colossus
Leedion
Audion
 Radion

22. A digital computer processes information in which form?
Continuous form
Discrete form
Semi-Continuous form
Semi-discrete form

23. What is the full form of ALU?
Arithmetic Logic Unit
Algebra Logic Unit
Arithmetic Logical Unit
None of the Above

24. Which of the devices converts drawing, printed text or other images into digital form ?
Keyboard
Scanner
Plotter
OMR

25. Which of the following is the name given to the number of concentric circles on a diskette?
Sectors
Cylinders
Tracks
Clusters

26. If your computer is overheating, Which of the following things you can do about it?
Ensure Proper Ventilation
Clean Out Computer’s Case
Tune Up Heat Sinks
All of the Above

27. A set of changes to a computer program and its supporting data designed to update, fix, or improve it. What is the name given to this term?
Patching
Bugging
Defragmentation
All of the Above

28. What is the name given to the storage device used for storing very small amounts of data such as small audio and video files?
Magnetic card
Magnetic tape
 Punched card
Optical mark reader

29. What is the name given to the device invented by Dr. Bobeck in 1966 for mass storage of data ?
Punched Paper Tape
Magnetic Bubble Storage
 Magnetic Tape
Magnetic Disk

30. It is a type of printer which can print multiple carbon copies at once. What is the name of this type of printer?
Impact Printer
Laser Printer
 Inkjet Printer
None of the Above

31. When 8 bits are combined, the resulting unit of storage is known by which of the following names?
Byte
Nibble
Kilobyte
None of the Above

32. Which of the following correctly defines the Digital Visual Interface?
It is a video display interface developed by the Digital Display Working Group.
It is used to connect a video source, such as a video display controller to a display device
The interface is designed to transmit uncompressed digital video.
All of the Above

33. There is a term called ATX generally used in computer hardware configuration. Which of the following clearly indicates towards ATX?
It is a motherboard configuration specification.
 It stands for Advanced Technology extended.
Both a and b
None of the Above

34. There is a software that protects a computer against viruses by identifying and removing any computer virus. What is name of this software?
Diagnostic Utility
Antivirus
Screen Saver
Windows Facility

35. What is the name given to the program in execution?
Process
Instruction
Procedure
Function

36. Which of the following are the software analysis and design tools?
Data Flow Diagrams
ER Diagrams
HIPO Diagrams
All of the Above

37. Who is the father of Open Source Software?
Richard Stallman
 Noumen
Ven Alley
Bill Gates

38. What is plan 9 form the Bell labs?
It is a distributed operating system.
The first official release was in 2015.
 Both a and b
None of the Above

39. Which of the following scheduling techniques is the most widely used in a time shared operating system?
Round Robin
 Shortest Job First
Elevator
First Come First Serve

40. Which of the following is the dominant Operating System in the world?
MacOS
Microsoft
Linux
None of the Above

41. Which of the following Operating systems was designed as a high dependability OS in which the kernel, device drivers, and application software were all written in managed code?
Singularity
Unix
Linux
MacOS

42. Which of the following scheduling techniques is the most widely used in a time shared operating system?
Round Robin
Shortest Job First
Elevator
 First Come First Serve

43. How many phases does a compiler has?
3
5
7
8

44. There are many application software packages available at present. Which of the following is an application software package?
Redhat Linux
Adobe PageMaker
Open Office
 Both b and c

45. Which of the following are the features of a Spreadsheet?
Layers and Lines
Rows and Columns
Layers and Planes
 Height and Width

46. What is full form of the YAGNI principle used in software system designing?
You are not gonna need it.
You are going not into it.
You are gonna need it.
You aint get to know it.

47. What does the SCCM stands for?
System Center Configuration Manager
Software Center Configuration Manager
Software Configuration Checking Manager
None of the Above

48. What is the term used for computer software that is undergoing testing and has not yet been officially released?
Alpha Software
Beta Software
Gamma Software
Ready-to-use Software

49. Which of the following is the scripting and programming language developed by John .H.Thompson for use in Adobe Director?
Java
Lingo
VBA
Ruby