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Quantum Computing and Its Impact on Cryptography - Quiz
Contributed by: Singh
  • 1. What is a qubit?
A) A software language for quantum programming.
B) A basic unit of quantum information.
C) A classical bit used in regular computing.
D) A type of encryption algorithm.
  • 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) 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) AES
B) SHA-256
C) RSA
D) Diffie-Hellman
  • 4. How does quantum key distribution (QKD) ensure secure communication?
A) By using classical encryption algorithms with quantum networks.
B) By continuously changing encryption keys at a fast pace.
C) By leveraging the principles of quantum mechanics for key exchange.
D) By relying on hardware-based encryption solutions.
  • 5. 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
  • 6. What is post-quantum cryptography?
A) Cryptography that only quantum computers can decrypt.
B) Cryptography used after a successful quantum encryption.
C) Cryptography that runs on quantum networks.
D) Cryptography designed to be secure against quantum attacks.
  • 7. 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) Linear speedup for all algorithms.
C) Faster at processing large datasets.
D) Exponential speedup for some algorithms.
  • 8. Which quantum algorithm is used for searching unsorted databases faster than classical algorithms?
A) Shor's algorithm
B) Grover's algorithm
C) Deutsch's algorithm
D) Bernstein-Vazirani algorithm
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