Hard Design: File Storage System (Google Drive/Dropbox)

Why is the file sync service better implemented with WebSocket notifications rather than polling?

— Tests your understanding of this concept.

Answer Options

A WebSocket is required by mobile OS

B WebSocket server push eliminates polling delay and reduces server load from constant polling requests

C Polling doesn't work over HTTPS

D WebSocket is more secure

Want to see the correct answer?

Get the answer with a detailed explanation, plus practice 22+ more Design: File Storage System (Google Drive/Dropbox) questions with adaptive quizzes and timed interviews.

See the Answer on Guru Sishya →

This question is from the Design: File Storage System (Google Drive/Dropbox) topic (System Design Cases).

Learn Design: File Storage System (Google Drive/Dropbox) → Browse All Questions

More Design: File Storage System (Google Drive/Dropbox) Questions

Why is chunked upload better than single-file upload for large files?

What hash function is used for block-level deduplication fingerprinting?

User A edits a file on their laptop while offline. User B edits the same file online. When A reconnects, how do you handle the conflict?

What is 'delta sync' and why does it matter?

How does block-level deduplication work when the same file is uploaded by 1000 users?