MCQOPTIONS
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MCQOPTIONS
This section includes 223 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Conversion of a hexadecimal number 3D to binary number is |
| A. | 111101 |
| B. | 110011 |
| C. | 11000110 |
| D. | 110001 |
| E. | None of the above |
| Answer» B. 110011 | |
| 2. |
Conversion of a hexadecimal number 4E to binary number is |
| A. | 1001101 |
| B. | 1001110 |
| C. | 1101100 |
| D. | 110111 |
| E. | None of the above |
| Answer» C. 1101100 | |
| 3. |
Conversion of binary number 101110 to octal is |
| A. | 35 |
| B. | 46 |
| C. | 56 |
| D. | 50 |
| E. | None of the above |
| Answer» D. 50 | |
| 4. |
Conversion of an octal number 20 to its binary number is |
| A. | 10000 |
| B. | 10111 |
| C. | 10110 |
| D. | 11110 |
| E. | None of the above |
| Answer» B. 10111 | |
| 5. |
Q: Who is the inventor of computer? |
| A. | von Neumann |
| B. | JS Kilby |
| C. | Charles Babbage |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
Q: Word processing, spreadsheet and photo editing are example of |
| A. | Platforms software |
| B. | Operating system software |
| C. | Application software |
| D. | System software |
| Answer» D. System software | |
| 7. |
Q: Which type of computer could be found in a digital watch? |
| A. | Mainframe |
| B. | Super computer |
| C. | Embedded computer |
| D. | Notebook computer |
| Answer» D. Notebook computer | |
| 8. |
Q: Which part of a computer is used for calculation and comparison? |
| A. | Disc Unit |
| B. | Modem |
| C. | ALU |
| D. | Control Unit |
| Answer» D. Control Unit | |
| 9. |
Q: Which one of the following is not a font type? |
| A. | Arial Black |
| B. | Comic sans |
| C. | Times New Roman |
| D. | None of the above |
| Answer» E. | |
| 10. |
Q: Which one of the following converts assembly language into machine language? |
| A. | Algorithm |
| B. | Interpreter |
| C. | Compiler |
| D. | Assembler |
| Answer» E. | |
| 11. |
Q: Which of the following is the Word processor in MS -Office? |
| A. | Word |
| B. | Word Prefect |
| C. | Word Star |
| D. | WordPad |
| Answer» B. Word Prefect | |
| 12. |
Q: Which of the following is the input unit? |
| A. | Mousse |
| B. | Keyboard |
| C. | Scanner |
| D. | All of these |
| Answer» E. | |
| 13. |
Q: Which of the following is optical memory? |
| A. | Bubble Memories |
| B. | floppy disk |
| C. | CD-ROM |
| D. | Core Memories |
| Answer» D. Core Memories | |
| 14. |
Q: Which of the following is not an operating system? |
| A. | Android |
| B. | Vista |
| C. | iOS |
| D. | Opera |
| Answer» E. | |
| 15. |
Q: Which of the following is not an input device? |
| A. | Keyboard |
| B. | Monitor |
| C. | Joystick |
| D. | Microphone |
| E. | None of these |
| Answer» C. Joystick | |
| 16. |
Q: Which of the following is not a type OS bus? |
| A. | Control bus |
| B. | Software bus |
| C. | Data bus |
| D. | Address bus |
| Answer» C. Data bus | |
| 17. |
Q: Which of the following is not a search engine? |
| A. | |
| B. | Yahoo |
| C. | Baidu |
| D. | Wolfram Alpha |
| Answer» E. | |
| 18. |
Q: Which of the following is not a logic gate? |
| A. | NOT |
| B. | NAT |
| C. | AND |
| D. | OR |
| Answer» C. AND | |
| 19. |
Q: Which of the following is a part of the system unit? |
| A. | CPU |
| B. | Monitor |
| C. | CD-ROM |
| D. | Floppy Disk |
| Answer» B. Monitor | |
| 20. |
Q: Which of the following is 3rd layer of OSI Model? |
| A. | Network layer |
| B. | Session layer |
| C. | Physical layer |
| D. | Application layer |
| Answer» B. Session layer | |
| 21. |
Q: Which of the following are the cheapest memory devices in terms of cost/bit? |
| A. | Magnetic Tapes |
| B. | Compact Disk |
| C. | Semiconductor Memories |
| D. | Magnetic Disk |
| Answer» C. Semiconductor Memories | |
| 22. |
Q: Which of following is a pure object-oriented language? |
| A. | C ++ |
| B. | JAVA |
| C. | PHP |
| D. | None of these |
| Answer» E. | |
| 23. |
Q: Which is multi processing? |
| A. | by a processor |
| B. | by more than one processor |
| C. | without any processor |
| D. | None of these |
| Answer» C. without any processor | |
| 24. |
Q: Which command can be used to recreate the disk tracks? |
| A. | Ctrl Disk |
| B. | ATTRIB |
| C. | F DISK |
| D. | FORMAT |
| Answer» E. | |
| 25. |
Q: Which are the control, memory and third units in the CPU? |
| A. | Micro |
| B. | processor |
| C. | output |
| D. | Economic / Logic |
| Answer» E. | |
| 26. |
Q: When was the first discovery of modern computers? |
| A. | 1949 |
| B. | 1951 |
| C. | 1946 |
| D. | 1947 |
| Answer» D. 1947 | |
| 27. |
Q: When is Computer Literacy Day celebrated? |
| A. | 2021-12-05 00:00:00 |
| B. | 2021-12-14 00:00:00 |
| C. | 2021-12-22 00:00:00 |
| D. | 2021-12-02 00:00:00 |
| Answer» E. | |
| 28. |
Q: When did the great revolution in computer field come? |
| A. | 1977 |
| B. | 2000 |
| C. | 1955 |
| D. | 1960 |
| Answer» E. | |
| 29. |
Q: What was the first computer name? |
| A. | ATARIS |
| B. | ENIAC |
| C. | TANDY |
| D. | NOVELLA |
| Answer» C. TANDY | |
| 30. |
Q: What is the language often used by children in a computer program? |
| A. | Basic |
| B. | Java |
| C. | logo |
| D. | Pilot |
| Answer» D. Pilot | |
| 31. |
Q: What is the Hindi name of computer? |
| A. | calculator |
| B. | Computer |
| C. | Accountant |
| D. | Calculators |
| Answer» C. Accountant | |
| 32. |
Q: What is the function of a MODEM? |
| A. | Converts analog signals to digital and vice - versa |
| B. | Serves as a hardware anti - virus |
| C. | Encryption & Decryption |
| D. | Converts data to voice and vice - versa |
| Answer» B. Serves as a hardware anti - virus | |
| 33. |
Q: What is the full form of CPU? |
| A. | Central Processing Unit |
| B. | Central Problem Unit |
| C. | Central Processing Union |
| D. | None of these |
| Answer» B. Central Problem Unit | |
| 34. |
Q: What is a portable, personal computer that is small enough to hold in your lap? |
| A. | Mainframe Computer |
| B. | notebook computer |
| C. | Workstation |
| D. | P.D.A. |
| Answer» C. Workstation | |
| 35. |
Q: ______transforms one interface into another interface. |
| A. | Data |
| B. | Hardware |
| C. | Programs |
| D. | Software |
| Answer» E. | |
| 36. |
Q: The shortcut key for “Replace” is? |
| A. | Shift + H |
| B. | Shift + Ctrl + R |
| C. | Ctrl + R |
| D. | Ctrl + H |
| Answer» E. | |
| 37. |
Q: The set of instructions which tells a computer what to do is called……. |
| A. | matter |
| B. | instructor |
| C. | compiler |
| D. | program |
| E. | debugger |
| Answer» E. debugger | |
| 38. |
Q: The primary purpose of an operating system is: |
| A. | To keep system programmer employed |
| B. | To make computer work easily |
| C. | To make the most efficient use of the computer hardware. |
| D. | To allow people to use the computer |
| Answer» D. To allow people to use the computer | |
| 39. |
Q: The most powerful computer is____ |
| A. | Super computer |
| B. | Micro computer |
| C. | Mini computer |
| D. | All of these |
| E. | None of these |
| Answer» B. Micro computer | |
| 40. |
Q: The ……………..control communications for the entire computer system. |
| A. | Arithmetic logic unit |
| B. | Semiconductor |
| C. | Motherboard |
| D. | Coprocessor |
| E. | None of these |
| Answer» D. Coprocessor | |
| 41. |
Q: The device used to carry digital data on analog lines is called as |
| A. | Modem |
| B. | Multiplexer |
| C. | Modulator |
| D. | Demodulator |
| Answer» B. Multiplexer | |
| 42. |
Q: The CPU and memory are located on the: |
| A. | Storage device |
| B. | Output |
| C. | Expansion board |
| D. | Motherboard |
| Answer» E. | |
| 43. |
Q: SMPS stands for |
| A. | Switched mode power supply |
| B. | Start mode power supply |
| C. | Store mode power supply |
| D. | Single mode power supply |
| Answer» B. Start mode power supply | |
| 44. |
Q: Recently, with which company has Apple been fined for patent infringement? |
| A. | Samsung |
| B. | Qualcomm |
| C. | Smart Flash LLC |
| D. | Nvidia |
| Answer» D. Nvidia | |
| 45. |
Q: Processor has three main parts? |
| A. | ALU, Control Unit and RAM |
| B. | ALU, Control Unit and Register |
| C. | Cash, control unit and register |
| D. | None of these |
| Answer» C. Cash, control unit and register | |
| 46. |
Q: OCR stands for……….. |
| A. | Optical Character Recognition |
| B. | Optical CPU Recognition |
| C. | Optimal Character Recognition |
| D. | Other Character Recognition |
| Answer» B. Optical CPU Recognition | |
| 47. |
Q: “World Wide Web" is made by: |
| A. | Tike Berners Lee |
| B. | Tim Berners Lee |
| C. | Tom Berners Lee |
| D. | Tin Berners Lee |
| Answer» C. Tom Berners Lee | |
| 48. |
Q: _____is data that has been organized or presented in a meaningful fashion. |
| A. | Storage |
| B. | Information |
| C. | A process |
| D. | Software |
| Answer» C. A process | |
| 49. |
Q: ______is a layer of computer system between the hardware and the user program. |
| A. | System environment |
| B. | Operational environment |
| C. | Operating system |
| D. | Operating environment |
| Answer» D. Operating environment | |
| 50. |
Q: Inventor of WWW is………. |
| A. | Bill Gates |
| B. | Lee.N.Feyog |
| C. | N.Resscl |
| D. | Tim Berners lee |
| E. | None of these |
| Answer» E. None of these | |