Quantum Computing – The Future of Computing MCQs

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1. : What is the fundamental unit of information in quantum computing?



 

2. : Which phenomenon allows a qubit to be in multiple states at once?



 

3. : Which property of quantum particles allows qubits to be linked regardless of distance?



 

4. : What is the major challenge in building scalable quantum computers?



 

5. : Who is considered one of the pioneers of quantum computing for proposing quantum gates?



 

6. : What algorithm, developed by Peter Shor, can factor large numbers exponentially faster than classical computers?



 

7. : What quantum algorithm is used for unstructured database searching?



 

8. : Which tech company developed the quantum processor called “Sycamore”?



 

9. : What programming framework does IBM use for quantum computing?



 

10. : Which quantum computing model is based on quantum annealing?



 

11. : What is quantum decoherence?



 

12. : What is the key advantage of quantum computing over classical computing?



 

13. : What term describes quantum error caused by environmental interference?



 

14. : Which of the following is a quantum programming language by Microsoft?



 

15. : What type of particle behavior is exploited in quantum computing?



 

16. : Which of the following is not a use case of quantum computing?



 

17. : What hardware component is crucial for controlling qubits in a quantum computer?



 

18. : What is the Heisenberg uncertainty principle related to in quantum computing?



 

19. : What is a Hadamard gate used for?



 

20. : What is the state of a qubit called before measurement?



 

21. : What is quantum supremacy?



 

22. : Which company first claimed to achieve quantum supremacy in 2019?



 

23. : What does “coherence time” mean in quantum computing?



 

24. : What quantum computing model uses logic gates like classical computers?



 

25. : What is used to cool quantum processors?



 

26. : Which quantum concept allows faster factorization in Shor’s algorithm?



 

27. : What is a key benefit of quantum entanglement?



 

28. : Which industry is expected to benefit most from quantum optimization algorithms?



 

29. : What does the Bloch sphere represent?



 

30. : What is quantum teleportation?



 

31. : Which of these is a quantum cloud computing platform?



 

32. : What does QKD stand for in quantum communication?



 

33. : What is a qudit?



 

34. : What quantum computing term refers to the transformation of qubit states?



 

35. : Which of these uses trapped ion technology for quantum computing?



 

36. : What is the expected impact of quantum computing on cryptography?



 

37. : What is the unit of quantum information entropy?



 

38. : In quantum computing, what is the process of measuring a qubit known to cause?



 

39. : What kind of problem is Grover’s algorithm best suited for?



 

40. : What makes classical error correction ineffective in quantum systems?



 

41. : What technology is needed to simulate quantum systems accurately?



 

42. : What is the Pauli-X gate equivalent to in classical computing?



 

43. : Which term refers to the quantum version of a classical circuit?



 

44. : What challenge does quantum error correction address?



 

45. : What is the main reason quantum computing is not yet mainstream?



 

46. : Who first proposed quantum computing in the 1980s?



 

47. : What kind of architecture is used in gate-based quantum computing?



 

48. : Which branch of physics does quantum computing fundamentally rely on?



 

49. : What organization launched the OpenQASM language?



 

50. : Which of the following is a quantum advantage example?



 

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