10 interview questions and answers on Quantum Computing

Here’s a list of questions and answers about the Quantum Computing. This guide can help you prepare for job interviews for Quantum Computing skill requirements.

List of 10 Quantum Computing Questions and Answers

Question 1: What is quantum communication?

Answer 1: It uses quantum states to transmit information securely using principles of quantum mechanics.

Question 2: What is QKD?

Answer 2: Quantum Key Distribution – a method to securely exchange cryptographic keys using quantum mechanics.

Question 3: Name one common QKD protocol.

Answer 3: BB84 protocol.

Question 4: How does quantum entanglement aid secure communication?

Answer 4: Any attempt to measure entangled particles disturbs their state, making eavesdropping detectable.

Question 5: What is quantum teleportation?

Answer 5: A technique to transmit quantum state from one location to another without moving the particle itself.

Question 6: What are qubits?

Answer 6: The fundamental units of quantum information, existing in superposition of 0 and 1.

Question 7: Mention one major application of quantum communication.

Answer 7: Secure military or governmental communication channels.

Question 8: What is quantum noise?

Answer 8: Random disturbances in a quantum system due to environment, affecting quantum data integrity.

Question 9: What is quantum repeaters’ role?

Answer 9: They extend the range of quantum communication by regenerating quantum signals.

Question 10: Which material is commonly used in quantum optics?

Answer 10: Photons (light particles) are used in optical fibers for quantum data transmission.