Google System Design Interview Questions

Review this list of 83 Google System Design interview questions and answers verified by hiring managers and candidates.

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Design a cache controller.
a month ago1 answer
Design a system to map IP address ranges to geographic region labels.
a year ago1 answer
Design an algorithm to predict the next word or phrase one is typing on a phone.
a year ago
How would you handle Gmail accounts when two users create the same username from different countries?
5 years ago1 answer
Design a monitoring system for 1000 web servers.
2 years ago1 answer
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Google wants to award its 5 trillionth query with a prize. How would you design this solution?
5 years ago
Design a service for uploading and tagging images on a travel site.
5 years ago
How would you monetize Google Assistant?
5 years ago3 answers
Design an AB test system.
a year ago1 answer
How would you design a LinkedIn-like system that instantly shows whether a profile is a first-, second-, or third-level connection for a user at very large scale?
6 months ago
Design a load balancer.
2 years ago1 answer
What does MTBF mean and why is it necessary?
5 years ago4 answers
Imagine there's a remote part of Earth where Google Maps doesn't exist. How would you go about designing Google Maps for that area?
10 months ago
Design a sentence autocomplete suggestion system. Example: Input - 'I hope you feel', Output - 'better soon'. This system is used in applications like Gmail, Google Docs, and Hangouts.
4 years ago1 answer
How would you price a self-driving car?
2 months ago2 answers
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
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
How would Google enter the food delivery space?
2 years ago2 answers
Improve a given system with your specialization: recommendations, natural language processing, or computer vision.
3 years ago
How do concurrent user flows work in Google Docs?
5 years ago1 answer

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Google System Design Interview Questions

Design a cache controller.

Design a system to map IP address ranges to geographic region labels.

Design an algorithm to predict the next word or phrase one is typing on a phone.

How would you handle Gmail accounts when two users create the same username from different countries?

Design a monitoring system for 1000 web servers.

Google wants to award its 5 trillionth query with a prize. How would you design this solution?

Design a service for uploading and tagging images on a travel site.

How would you monetize Google Assistant?

Design an AB test system.

How would you design a LinkedIn-like system that instantly shows whether a profile is a first-, second-, or third-level connection for a user at very large scale?

Design a load balancer.

What does MTBF mean and why is it necessary?

Imagine there's a remote part of Earth where Google Maps doesn't exist. How would you go about designing Google Maps for that area?

Design a sentence autocomplete suggestion system. Example: Input - 'I hope you feel', Output - 'better soon'. This system is used in applications like Gmail, Google Docs, and Hangouts.

How would you price a self-driving car?

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

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.

How would Google enter the food delivery space?

Improve a given system with your specialization: recommendations, natural language processing, or computer vision.

How do concurrent user flows work in Google Docs?

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