Design a Power-Plant System from an Underspecified Prompt
Last updated: August 15, 2026
Quick Overview
Design a power-plant system based on an underspecified prompt, focusing on the architecture and components necessary to operate efficiently.
OpenAI
August 15, 20262
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Design a power-plant system based on an underspecified prompt, focusing on the architecture and components necessary to operate efficiently.
This question is typically asked during the technical screen to evaluate a candidate's ability to handle ambiguous requirements and design complex systems. Interviewers are looking for candidates who can think critically about system requirements, scalability, and fault tolerance while articulating their thought process clearly.
What the Interviewer Expects
- Identify key requirements for the power-plant system.
- Outline a high-level architecture including major components.
- Discuss potential failure modes and how to handle them.
- Provide details on data flow and APIs.
- Consider scalability and optimization strategies.
Key Topics to Cover
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
Possible Follow-up Questions
- How would you ensure the system is fault-tolerant?
- What metrics would you monitor to evaluate system performance?
- Can you describe a potential bottleneck in your design?
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Practice System Design ProblemsSample Answer
Requirements
Requirements
To design a power-plant system, we first need to identify the key requirements:
- Energy Generation: The system must efficiently convert fuel into energy.
- Monitoring: Real-t...
High-Level Design
High-Level Design
The architecture of the power-plant system can be broken down into several major components:
- Energy Generation Unit: This includes turbines and generators that convert ene...
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