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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 type of encryption algorithm.
C) A software language for quantum programming.
D) A basic unit of quantum information.
  • 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) AES
B) Diffie-Hellman
C) SHA-256
D) RSA
  • 4. 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) Exponential speedup for some algorithms.
C) Faster at processing large datasets.
D) Linear speedup for all algorithms.
  • 5. What is the term for a quantum computer's ability to perform many calculations simultaneously?
A) Quantum parallelism
B) Quantum superposition
C) Quantum entanglement
D) Quantum interference
  • 6. Which quantum algorithm is used for searching unsorted databases faster than classical algorithms?
A) Grover's algorithm
B) Bernstein-Vazirani algorithm
C) Shor's algorithm
D) Deutsch'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 leveraging the principles of quantum mechanics for key exchange.
D) By relying on hardware-based encryption solutions.
  • 8. What is post-quantum cryptography?
A) Cryptography used after a successful quantum encryption.
B) Cryptography that only quantum computers can decrypt.
C) Cryptography that runs on quantum networks.
D) Cryptography designed to be secure against quantum attacks.
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