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