Browser & Web Performance · Middle · Question 72 of 75

What problem of HTTP/2 over TCP does HTTP/3 solve?

✓Correct answer: TCP head-of-line blocking: one lost packet stalls all streams; QUIC streams are independent
2The lack of header compression
3The lack of encryption

Explanation

HTTP/3 runs over QUIC (on UDP) with built-in TLS 1.3, which also makes connection setup faster. It helps most on lossy mobile networks.

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