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System Design interview questions

Defending Tradeoffs, Drawing the Blueprint

39 questions with answers and explanations · 39 flashcards

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Questions

  1. During a live coding session, you're asked to calculate the time complexity of your solution. What is the time complexity of a binary search algorithm?Multiple choiceHard
  2. If an interviewer says inventory accuracy is critical during checkout, which design statement is strongest?Multiple choiceHard
  3. You are reviewing a codebase and spot a potential security issue. Which practice is most effective for mitigating SQL injection vulnerabilities?Multiple choiceEasy
  4. Which approach is the strongest way to start a senior system-design answer?Multiple choiceEasy
  5. When discussing SQL databases, what does ACID stand for, and why is it important?Multiple choiceHard
  6. During a code review, you spot a potential race condition. What is one effective way to address this in Java?Multiple choiceHard
  7. In a system design interview, you're asked about CAP theorem. Which two properties can a distributed database guarantee simultaneously?Multiple choiceHard
  8. In a live coding interview, why is it beneficial to explain your approach aloud while coding?Multiple choiceHard
  9. Which answer sounds most like strong tradeoff reasoning in a checkout design discussion?Multiple choiceMedium
  10. When you're designing a microservice that requires high availability and flexibility in schema design, which database type should you consider first?Multiple choiceEasy
  11. Which method is most effective for ensuring high availability in a microservices architecture?Multiple choiceEasy
  12. In the context of a system design interview, how would you justify the use of a Circuit Breaker pattern?Multiple choiceHard
  13. Which approach is effective for mitigating a Single Point of Failure (SPOF) in a distributed system?Multiple choiceMedium
  14. In the context of network catastrophes, what is the primary benefit of implementing a Circuit Breaker pattern?Multiple choiceMedium
  15. In an interview, you're asked to explain horizontal auto-scaling. Which statement correctly describes this concept?Multiple choiceMedium
  16. What aspect of SQL databases ensures that all database transactions are processed reliably?Multiple choiceEasy
  17. In a system design interview, you need to choose between SQL and NoSQL for a new microservice. Which factor most strongly justifies choosing NoSQL?Multiple choiceEasy
  18. What does the STAR framework help you achieve in a behavioral interview?Multiple choiceEasy
  19. During a system design interview, how would you differentiate between synchronous and asynchronous data flow?Multiple choiceMedium
  20. When clarifying the scope of a system design interview question, what should be your primary focus?Multiple choiceEasy
  21. How would you explain a critical consideration when transitioning from a synchronous to an asynchronous message processing system in an interview?Multiple choiceHard
  22. Which database type would you recommend for a system requiring high transaction throughput, and why?Multiple choiceMedium
  23. In JVM architecture, what is the main purpose of the garbage collector?Multiple choiceHard
  24. When designing a scalable e-commerce platform, which strategy helps manage sudden spikes in traffic?Multiple choiceMedium
  25. How can the STAR framework help you in a behavioral interview?Multiple choiceMedium
  26. How can you ensure efficient communication between microservices in a highly scalable system?Multiple choiceHard
  27. In a system design interview, how should you describe the role of a Load Balancer?Multiple choiceMedium
  28. How would you explain a key advantage of designing systems with a microservices architecture in an interview?Multiple choiceEasy
  29. How would you explain a key advantage of using a NoSQL database over a SQL database in a large-scale distributed system in an interview?Multiple choiceMedium
  30. In the context of JVM, why is understanding memory architecture important in system design?Multiple choiceHard
  31. Which of the following best describes the role of a Senior Engineer in system design?Multiple choiceMedium
  32. How would you explain a critical benefit of using the STAR framework during interviews in an interview?Multiple choiceMedium
  33. In a distributed system, what is the primary role of a Load Balancer?Multiple choiceMedium
  34. When transitioning to a Senior Engineer role, what is a crucial skill you should develop?Multiple choiceMedium
  35. Which technique is typically used to mitigate a Single Point of Failure in a distributed system?Multiple choiceMedium
  36. In a code review, what is a common issue with excessive use of 'synchronized' in Java applications?Multiple choiceEasy
  37. When transitioning to a Senior Engineer role, which skill is crucial in system design?Multiple choiceMedium
  38. Which of the following best explains why a Message Broker might be used in a system architecture?Multiple choiceHard
  39. Why might a NoSQL database be preferred over a SQL database for a real-time analytics application?Multiple choiceMedium