QC GUY QUIZ

This month, I thought for a change I’d have a bit of fun and put together a Quantum quiz based on the articles across the site. It’s a chance to test your knowledge, challenge some of the concepts we’ve explored, and perhaps look at quantum from a slightly different angle. Have a go and see where you land and more importantly, find out whether you’ve achieved Quantum Supremacy.

Q1. What is the defining feature of a qubit compared to a classical bit?
A. It runs faster algorithms by default
B. It can store more memory per chip
C. It can exist in a superposition state (not just strictly 0 or 1)
D. It only works in cloud environments

Q2. Which quantum property enables correlations between particles regardless of distance?
A. Parallelisation
B. Decoherence
C. Optimisation
D. Entanglement

Q3. Why is quantum computing fundamentally different from classical computing?
A. It cannot be programmed
B. It only runs in laboratories
C. It replaces all classical computers
D. It leverages quantum-mechanical effects rather than only binary logic

Q4. What does “Quantum AI” refer to?
A. Applying quantum computing techniques to AI/ML problems
B. AI models running faster in the cloud
C. Classical AI with better GPUs
D. AI systems replacing quantum computers

Q5. In discussions of Quantum AI, where does much of the hype come from?
A. AI is already trained on quantum hardware at scale
B. Oversimplified or misunderstood claims of “quantum advantage”
C. Quantum computers are already enterprise-standard
D. Quantum AI has eliminated data issues

Q6. What is “Q‑Day”?
A. The day the first qubit was built
B. The day cloud quantum becomes free
C. The date all banks switch systems
D. The moment quantum computers can break current public-key cryptography

Q7. In a quantum-threat world, what changes most fundamentally?
A. Networks stop needing authentication
B. Storage becomes unlimited
C. Digital secrets effectively gain expiry dates
D. Passwords become unnecessary

Q8. What does “Harvest Now, Decrypt Later” mean?
A. Data is harvested only from quantum systems
B. Encryption strengthens over time
C. Attackers wait to steal data until quantum exists
D. Attackers store encrypted data now to decrypt later

Q9. What defines a Cryptographically Relevant Quantum Computer (CRQC)?
A. Ability to run Shor’s algorithm to break RSA/ECC
B. Malware detection capability
C. Faster AES encryption
D. Perfect key backup

Q10. Which algorithm threatens RSA and ECC?
A. Gradient Descent
B. FFT
C. Grover’s Algorithm
D. Shor’s Algorithm

Q11. What is the key idea behind Quantum Key Distribution (QKD)?
A. Using larger RSA keys
B. Replacing the internet
C. Sharing encryption keys using physics-based principles
D. Transmitting encrypted data directly

Q12. QKD security relies on which principles?
A. Packet switching
B. Moore’s Law
C. Key rotation
D. Measurement disturbance and the no-cloning theorem

Q13. What classical networking assumption fails in quantum networking?
A. Latency exists
B. Data can be routed
C. Data can be perfectly copied
D. Packets can queue

Q14. Which ISO references recognise quantum networking evolution?
A. ISO 20000 and ISO 14001
B. ISO/IEC 23837-1:2023 and ISO/IEC 4879:2024
C. ISO 31000 and ISO 15408
D. ISO 27001 and ISO 9001

Q15. What is highlighted at Layer 1 in a “Quantum OSI” model?
A. Satellite-only transmission
B. Wi‑Fi backbone
C. Photon-based communication
D. Copper transmission

Q16. What is the primary benefit of Quantum-as-a-Service?
A. Removes developers
B. Guarantees quantum advantage
C. Eliminates classical computing
D. Access to quantum systems without building expensive labs

Q17. What differentiates AWS Braket’s approach?
A. On-prem only model
B. Single hardware provider
C. No cloud integration
D. Access to multiple quantum hardware providers via one platform

Q18. What are the three pillars of IOWN?
A. Fibre, 5G, satellite
B. AI governance stack
C. CPU scaling
D. All-Photonics Network; Photonics-Electronics Convergence; Data-Centric Infrastructure

Q19. What is a quantum computing cluster?
A. One massive chip
B. Independent mobile devices
C. Simulated system only
D. Interconnected quantum processors acting as one system

Q20. What are the two categories of quantum use cases described?
A. Extension vs Uncharted
B. Hardware vs Software
C. Cloud vs On-prem
D. Supervised vs Unsupervised

Answers:

Q1 - C, Q2 - D, Q3 - D, Q4 - A, Q5 - B, Q6 - D, Q7 - C, Q8 - D, Q9 - A, Q10 - D, Q11 - C, Q12 - D, Q13 - C, Q14 - B, Q15 - C, Q16 - D, Q17 - D, Q18 - D, Q19 - D, Q20 - A

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