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