CS fundamentals and algorithms
First request latency
On a cold start, your app's first API response takes 800ms and every one after that takes 120ms. Can you walk me through what happens in the network stack in between, step by step?
First request latency
On a cold start, your app's first API response takes 800ms and every one after that takes 120ms. Can you walk me through what happens in the network stack in between, step by step?
NetworkingShort answerAdvanced
When the app sends a request to https://api.example.com, what happens at the TLS level be…
#tls #handshake
NetworkingMultiple choiceAdvanced
The server team moved to TLS 1.3 and says app connections got faster. Select all the stat…
#tls #handshake
SecurityShort answerAdvanced
Why can't you call communication absolutely safe just because you use HTTPS, and which we…
#dns #tls
NetworkingShort answerExpert
A report says the app is slow only for users in one region, but the server metrics look n…
#urlsessiontaskmetrics