Design an Online Polling Service · System Design Interview

Design an Online Polling ServiceDesign a service where someone creates a poll with a few options, shares a link, and everyone who opens it can vote once and see the results.What it has to do

Create a poll with a question and two to ten options

Cast one vote per voter on a poll

Show the current results for a poll

Scale

Polls created per day: 1 million

Votes per day: 200 million

Out of scope

User accounts and authentication

Embedding polls in other sites

Fraud and bot detection

Practise this challengeAll system design challenges

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