Interview Practice Questions

Design a product search system based on images that supports 500,000 users. It should handle 10,000 queries per second and return results with a latency of no more than 1 second.

Build a medical analysis system using MRI images. The system should process 1,000 images per day and provide an accuracy of at least 98%, with a response time not exceeding 4 seconds.

Design a face recognition system that needs to handle 100,000 users simultaneously. The system should provide a response time of less than 2 seconds and be capable of processing 500 queries per second. How would you design this system?

You need to build a product image search system that can handle 10,000 queries a day. The system should support 3,000 unique images and provide search results with a latency of less than 1 second. How would you approach this task?

Design an OCR system that needs to process 200 documents per minute with a maximum accuracy of 95%. The system should be able to scale up to 10,000 documents per minute within the next five years. How would you design this architecture?

You need to design a video surveillance system that should process and analyze 4K video streams with a latency of less than 5 seconds. The system should support up to 50 cameras simultaneously. What technologies and architectural solutions would you use?

Design a medical imaging system that needs to process 1 TB of images per day. The system should allow access to images for 100 doctors simultaneously with a latency of less than 2 seconds. How will you address data storage and processing challenges?

You need to build a perception system for autonomous driving that must process data from 10 sensors in real-time, ensuring a latency of less than 20 ms. The system should be able to handle up to 1,000,000 data records per second. What are your key considerations in designing this system?

Design a quality inspection system that needs to process 5,000 products per hour and detect defects with an accuracy of at least 90%. The system should provide a response time of less than 3 seconds for each inspection. What approaches would you use to achieve this?

You need to design a face recognition system that operates under low light conditions, processing 1,000,000 images with an expected accuracy of 85%. The system should provide processing time of less than 1 second for each image. How will you handle these constraints?

Design a text-based image search system that should handle 50,000 queries a day and provide results in less than 2 seconds. The system should support 10 million images. What are your key architectural decisions?

You need to build a system for real-time analysis of 100 video streams, ensuring a latency of less than 10 seconds for each stream. The system should support scaling up to 5,000 streams in the future. How will you ensure system performance and reliability?

What is GIL and how does it affect multithreading in Python?

Explain the difference between multiprocessing and threading in Python.

What are decorators with arguments and how do they work?

How do generators work and when should you use yield?

Explain what async/await is and how the event loop works.

Compare dataclasses, NamedTuple, and attrs. What are their differences?

How does MRO work and what is C3 linearization?

What are descriptors and how do they work with __get__ and __set__?