Quiz on WhatsApp’s Design
Test your understanding of the concepts related to our WhatsApp design via a quiz.
5
(Fill in the blank.) WebSocket servers use cache to ________.
Your Answer
A)
store messages temporarily
B)
store messages permanently
Correct Answer
C)
store mapping of users and their corresponding WebSocket handlers
D)
store metadata of each user
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Evaluation of WhatsApp’s Design
System Design: The Typeahead Suggestion System
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