Real-time systemsHardStaff

Your chat product runs in Mumbai and Singapore regions for latency. A user in India and a user in Singapore are in the same conversation. How do messages flow, and how do you keep ordering correct?

Asked at

MicrosoftZoho

Think first

Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

Go deeper

Saved on this device. Create a free account to keep it on every device.

Practise this with Sam

A real mock interview, out loud, with an honest scorecard. Free to start.