1. Given a list of promises, how would you resolve the output?
2. Design a wallet service similar to PayPal.
3. Design a QR code-based payment system.
4. How does Kafka work, and can you describe a scenario where it would be used?
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PayPay Corporation is a leading financial technology company specializing in digital payment services and solutions primarily in Japan.
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Industry: Financial Technology (FinTech), Digital Payments
Office Locations: Tokyo
India Headquarters: Tokyo
Employee Count: Over 1,000
1. Given a list of promises, how would you resolve the output?
2. Design a wallet service similar to PayPal.
3. Design a QR code-based payment system.
4. How does Kafka work, and can you describe a scenario where it would be used?