Key Insights: Facebook
Learn to avoid design pitfalls, prepare for interviews, and test your knowledge of Facebook.
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Great work advancing your Facebook system design! This lesson offers practical insights to help you fine-tune your approach, avoid common pitfalls, and confidently tackle interview questions. You’ll also find a short quiz to test your knowledge and related case studies to deepen your practice.
Common mistakes
While designing Facebook in an interview, many candidates face similar pitfalls that weaken their solution or presentation.
Ignoring privacy details: Candidates often overlook designing how privacy settings work for profiles, posts, groups, and pages. For example, they may forget to clarify how friends-only or custom visibility impacts post delivery and notifications. Always design and explain a dedicated class with clear methods for setting visibility. ...