What not to do in system design interview?

Knowing what to avoid in a system design interview is just as important as knowing what to do. Let's go through some key "don'ts" to keep in mind:

Don'ts of a System Design Interview:

1. Don’t Jump to Solutions:

   • Avoid rushing into solutions without fully understanding the problem. Take your time to ask clarifying questions and grasp the requirements.

2. Don’t Ignore the Interviewer's Inputs:

   • If the interviewer provides hints or feedback, don’t ignore them. They might be trying to guide you in the right direction.

3. Don’t Overlook Non-Functional Requirements:

   • Don’t focus solely on functional aspects. Consider scalability, performance, reliability, and security too.

4. Don’t Get Bogged Down in Details Initially:

   • Avoid getting caught up in low-level details at the beginning. Start with a high-level design and then drill down.

5. Don’t Stick Rigidly to One Idea:

   • Be flexible. If you find that your initial approach has flaws, be open to reevaluating and adjusting your design.

6. Don’t Forget Trade-offs:

   • Avoid presenting your solutions as perfect. Discuss the trade-offs and limitations of your design.

7. Don’t Neglect Data Management:

   • Don’t underestimate the importance of data flow, storage, and management in your design.

8. Don’t Assume:

   • Don’t make assumptions without stating them. If you’re unsure about something, it’s better to ask or at least verbalize your assumption.

9. Don’t Be Overly Technical:

   • While technical depth is good, overly complex explanations can be a drawback. Communicate your ideas clearly and concisely.

10. Don’t Underplay Soft Skills:

    • Don’t focus only on the technical side. Your ability to communicate, collaborate, and receive feedback is also being evaluated.

11. Don’t Ignore Scalability:

    • Avoid designs that don’t consider scaling. Systems should be able to handle growth and increased demand.

12. Don’t Disregard Simplicity:

    • A complex solution isn’t always the best. Aim for simplicity and elegance in your design.

13. Don’t Be Afraid to Admit You Don’t Know:

    • If you’re unsure about something, it’s okay to admit it. Guessing or providing incorrect information can be more damaging.

Remember:

A system design interview is as much about your thought process and approach as it is about your final answer. Being adaptable, open to feedback, and clear in your communication are key elements of success.