System Design AI

PRACTICE WITH PURPOSE

A good question opens up a better design.

Explore original questions for your role. Try an approach, discuss the tradeoffs, and learn from the interviews people actually had.

Explore design examples

16 practice questions

Original prompts · Evidence-based feedback

OfficialInfrastructure

Roll out configuration to a disconnected fleet

Safely converge 40,000 gateways while some sites are disconnected and old controllers can return.

advanced · 55 minExplore question
OfficialInfrastructure

Keep a regional ingress service alive

Survive a regional outage without confusing a health check with safe recovery.

advanced · 50 minExplore question
OfficialProduct & backend

Sell a limited drop without overselling

Separate reservation, payment and confirmed purchase during a 50,000-person launch.

intermediate · 45 minExplore question
OfficialProduct & backend

Sync inspections from offline field teams

Reconcile conflicting edits and large photo uploads without losing submitted inspections.

intermediate · 45 minExplore question
OfficialTechnical program management

Migrate payment processors without a flag day

Create a gated migration plan when engineering, finance and support have different definitions of success.

advanced · 50 minExplore question
OfficialTechnical program management

Launch a regional data-residency commitment

Turn an enterprise residency promise into enforceable scope and a cross-team launch plan.

advanced · 50 minExplore question
OfficialAI & data

Keep enterprise AI search fresh and private

Handle document changes, ACL revocation and deletion across a retrieval pipeline.

advanced · 55 minExplore question
OfficialAI & data

Ship a cheaper model without hiding regressions

Build a release decision from noisy evaluations, customer slices and production feedback.

intermediate · 45 minExplore question
OfficialProduct & strategy

Test a neighborhood tool library

Choose a useful first service before spending a small team’s budget on an app.

intermediate · 40 minExplore question
OfficialProduct & strategy

Help workshop visitors find a reason to return

Investigate a drop in repeat visits and choose one test without assuming reminders are the answer.

intermediate · 40 minExplore question
OfficialDesign & service experience

Make a first studio visit feel clear and welcoming

Design a complete arrival experience across booking, signs, staff and a changed room.

intermediate · 35 minExplore question
OfficialDesign & service experience

Explain an event change before people make the trip

Keep a community event’s update, travel and arrival experience consistent when plans change.

intermediate · 40 minExplore question
OfficialBusiness & community operations

Organize a fair maker-market application process

Process more applications than available tables with clear decisions, ownership and a waitlist.

intermediate · 40 minExplore question
OfficialBusiness & community operations

Keep community support requests from getting lost

Make ownership and honest response promises work with a limited weekly support budget.

intermediate · 40 minExplore question
OfficialGetting started

Share one study room without double bookings

Explain a simple booking process, try it with examples and improve one weak spot.

beginner · 25 minExplore question
OfficialGetting started

Run a book-swap table that newcomers can understand

Arrange a small community activity with clear rules, a simple record and a closing plan.

beginner · 30 minExplore question

Official questions are written for practice. “I was asked this” reports are community recollections, labeled separately. We don’t infer company interview frequency from a small sample.