Basic

sentence

• so on and so forth

Tip

clarify thought, flexibility, knowledge - Don't dive into detail - diff architecture - keep it simple stupid - make justifications for points you made - discuss pros and cons of choices

load balance

many request to servers, use hashmap to map into servers

Reference: - Performant Front-End Architecture

requirement

• user/customers
• who will use it
• how the system will be used
  • frequency
• scale(r/w)
• How many read queries per second
• How much data is queried per request
• How many video views are pocessed per second
• Can there be spikes in traffic
• performance
• What is expected write-to-read data delay?
• What is expected p99 latency fo read queries?
• cost
• Should the design minimize the cost of development?
• Should the design minimize the cost of maintenance?