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