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