Quantum Computing MCQ Questions

Quantum Computing MCQ Questions | Freshers & Experienced

  • Satyam Jaiswal
  • 22nd May, 2021

We are introducing here the best Quantum Computing  MCQ Questions, which are very popular & asked various times. This Quiz contains the best 25+ Quantum Computing MCQ with Answers, which cover the important topics of Quantum Computing so that, you can perform best in Quantum Computing exams, interviews, and placement activities.

1) What is quantum computing ?

  • A. Quantum computing is the phenomena of quantum mechanics in computation to solve certain problems.
  • B.Quantum computing is an old technology used in computation.
  • C.Quantum computing used in computation to solve certain physics problems only.
  • D.None of the above

2) Quantum computing is relatively _________ than classical computing.

  • A. Slower
  • B.Faster
  • C.Average
  • D.Can't say

3) Instead of bits Quantum computers use ________.

  • A. Byte
  • B.Kilo Byte
  • C.Quantum Byte
  • D.Qubit

4) The ability to simultaneously be in multiple states is called ________.

  • A. superstition
  • B.subposition
  • C.superposition
  • D.superprogram

5) When the two members of a Qubit pair exist in a single quantum state, it is known as ____________.

  • A. engagement
  • B.superposition
  • C.entanglement
  • D.None of the above

6) The interaction of qubits with their environment in ways that cause their quantum behavior to decay and ultimately disappear is known as ___________.

  • A. decoherence
  • B.superposition
  • C.entanglement
  • D.subposition

7) ______________ is the point at which a quantum computer can complete a mathematical calculation that is demonstrably beyond the reach of even the most powerful supercomputer.

  • A. Quantum entanglement
  • B.Quantum supremacy
  • C.Quantum energy
  • D.None of the above

8) In which year first quantum computer (2-qubit) was created?

  • A. 1995
  • B.1997
  • C.1998
  • D.2001

9) In which year first quantum computer (2-qubit) was created?

  • A. 1995
  • B.1997
  • C.1998
  • D.2001

10) What are the applications of quantum computers?

  • A. Cybersecurity & Cryptography.
  • B.Artificial Intelligence & Machine Learning.
  • C.Drug Design & Development.
  • D.All of the above

11) Qubit stands for _________.

  • A. Quality bits
  • B.Question bit
  • C.Quantum bit
  • D.None of the above

12) Obstacles for building Quantum computers are ___________.

  • A. Universal gate set
  • B.Qubits that can be initialized to arbitrary values
  • C.Quantum gates that are faster than decoherence time
  • D.All of the above

13) Who is the father of quantum computing?

  • A. David Deutsch
  • B.Neil Gershenfeld
  • C.Isaac Chuang
  • D.All of the above

14) _______ was the first company to put a quantum computer on the cloud.

  • A. Google
  • B.Microsoft
  • C.IBM
  • D.Apple

15) Can Light-Based Quantum Computer Exceeds Fastest Classical Supercomputers.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

16) Which company announced it has a quantum computer that is 100 million times faster than any classical computer.

  • A. Apple
  • B.Microsoft
  • C.Google
  • D.IBM

17) A qubit is the quantum mechanical analogue of a classical bit.

  • A. True
  • B.False

18) A qubit is a _______ quantum-mechanical system.

  • A. one-state
  • B.two-state
  • C.three-state
  • D.four-state

19) ________ is a quantum system that can exist in any quantum superposition of two independent quantum states.

  • A. one-state system
  • B.two-state system
  • C.three-state
  • D.None of the above

20) Some of the leading companies in the field Quantum Computing are ______

  • A. Google
  • B.IBM
  • C.ION-Q
  • D.All of the above

21) Qubits, which can be made of atoms or subatomic particles, behave according to the laws of quantum mechanics.

  • A. True
  • B.False

22) Quantum bits, or qubits, can neither exist as zeros and ones at the same time, nor in any position between.

  • A. True
  • B.False

23) What hurdles do researchers face in developing a quantum computer?

  • A. A large number of qubits into working together efficiently.
  • B.Qubits are finicky.
  • C.Qubits stop functioning at the slightest disturbance.
  • D.All of the above

24) A fully functioning quantum computer has the potential to be _____________ .

  • A. slow
  • B.constant
  • C.transformative
  • D.All of the above

25) The ________ industry is at the learner level of quantum maturity.

  • A. consumer
  • B.insurance
  • C.pharma
  • D.None of the above

26) Quantum computers can create vast multidimensional spaces in which to represent very large problems. Classical supercomputers cannot do this.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

27) Quantum entanglement doesn't allows qubits, which behave randomly, to be perfectly correlated with each other.

  • A. True
  • B.False

28) Quantum advantage doesn’t mean that quantum computers will suddenly replace classical computers.

  • A. True
  • B.False

29) NISQ stands for ________.

  • A. Noisy Internet-Scale Quantum
  • B.Noisy Intermediate-Scale Question
  • C.Noisy Intermediate-Scale Quantum
  • D.Noisy Intermediate-Scale Query

30) The quantum advantage on NISQ devices are ______.

  • A. problems which are hard for classical computers and scale quickly
  • B.datasets which are sparse and are coming from probabilistic distributions
  • C.Both A and B
  • D.None of the above

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