System Design Interview Questions

Review this list of 501 System Design interview questions and answers verified by hiring managers and candidates.

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Design a custom policy extension for an LRU Cache.
2 years ago2 answers
Design the architecture to send chargeback transactions to Visa.
2 years ago2 answers
Design a live event streaming system that captures user polls and allows user interaction
a year ago
If the data set is too large to fit in memory on one machine and you have multiple workers, how would you sort it?
6 months ago
How would you scale application security initiatives without scaling the team?
a year ago
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In a large application, which code branches are more important to be tested and how do you decide?
2 years ago1 answer
Design Reddit's homepage. Has video answer
Design a travel app experience for Meta.
4 years ago1 answer
Design a rate limiter for an app with a freemium model.
2 years ago
Design a plan to migrate an existing authentication system to a new one.
a year ago1 answer
Design a secret management service like Kubernetes Vault.
10 months ago
Design a system that collects logs and metrics from many source systems, processes them by dimensions like location, customer, and data type, and serves them to downstream consumers.
6 months ago
Design a system for an Alexa-enabled Peloton. Define the APIs, system architecture, and explain the various components.
4 years ago
Design Chess.com Has video answer
4 months ago1 answer
Design an e-commerce website.
2 months ago
How would Google enter the food delivery space?
2 years ago2 answers
Using AI, what platform would you build to resolve data discrepancies across a luxury hotel chain and improve the customer experience across channels?
3 months ago
Implement a time-based key value store with set and get, plus extra methods.
6 months ago
Design Lyft for deaf drivers.
5 years ago2 answers
Design Amazon Storage.
4 years ago1 answer

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System Design Interview Questions

Design a custom policy extension for an LRU Cache.

Design the architecture to send chargeback transactions to Visa.

Design a live event streaming system that captures user polls and allows user interaction

If the data set is too large to fit in memory on one machine and you have multiple workers, how would you sort it?

How would you scale application security initiatives without scaling the team?

In a large application, which code branches are more important to be tested and how do you decide?

Design Reddit's homepage. Has video answer

Design a travel app experience for Meta.

Design a rate limiter for an app with a freemium model.

Design a plan to migrate an existing authentication system to a new one.

Design a secret management service like Kubernetes Vault.

Design a system that collects logs and metrics from many source systems, processes them by dimensions like location, customer, and data type, and serves them to downstream consumers.

Design a system for an Alexa-enabled Peloton. Define the APIs, system architecture, and explain the various components.

Design Chess.com Has video answer

Design an e-commerce website.

How would Google enter the food delivery space?

Using AI, what platform would you build to resolve data discrepancies across a luxury hotel chain and improve the customer experience across channels?

Implement a time-based key value store with set and get, plus extra methods.

Design Lyft for deaf drivers.

Design Amazon Storage.

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