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Security, auth & multi-tenancyHardSDE-3
Your payments API is hit by a DDoS attack: first a 400 Gbps UDP flood, then a slow, distributed HTTP flood of valid-looking requests at 2 million RPS. Walk me through a layered defence architecture.
Asked at
AmazonGooglePhonePeRazorpay
Think first
Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.
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