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Quantum Computing and Its Impact on Cryptography - Quiz
Contributed by: Singh
  • 1. What is a qubit?
A) A basic unit of quantum information.
B) A classical bit used in regular computing.
C) A type of encryption algorithm.
D) A software language for quantum programming.
  • 2. How does quantum superposition differ from classical superposition?
A) Quantum superposition only applies to photon states.
B) Classical superposition is more stable.
C) Classical superposition involves physical waves.
D) Quantum superposition allows qubits to be in multiple states simultaneously.
  • 3. Which classical public-key encryption algorithm is vulnerable to quantum attacks?
A) SHA-256
B) AES
C) Diffie-Hellman
D) RSA
  • 4. What is post-quantum cryptography?
A) Cryptography that only quantum computers can decrypt.
B) Cryptography used after a successful quantum encryption.
C) Cryptography designed to be secure against quantum attacks.
D) Cryptography that runs on quantum networks.
  • 5. What is the theoretical advantage of quantum computers over classical ones in terms of solving certain problems?
A) Better at solving purely mathematical problems.
B) Linear speedup for all algorithms.
C) Exponential speedup for some algorithms.
D) Faster at processing large datasets.
  • 6. Which quantum algorithm is used for searching unsorted databases faster than classical algorithms?
A) Deutsch's algorithm
B) Bernstein-Vazirani algorithm
C) Grover's algorithm
D) Shor's algorithm
  • 7. What is the term for a quantum computer's ability to perform many calculations simultaneously?
A) Quantum superposition
B) Quantum interference
C) Quantum parallelism
D) Quantum entanglement
  • 8. How does quantum key distribution (QKD) ensure secure communication?
A) By relying on hardware-based encryption solutions.
B) By leveraging the principles of quantum mechanics for key exchange.
C) By using classical encryption algorithms with quantum networks.
D) By continuously changing encryption keys at a fast pace.
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