Module 02 · Networking · Drill

Networking drill

Scenario prompts that check whether networking is usable under pressure. Answer out loud, then compare.

4 prompts20 minNew

0 of 4 graded

Prompt 1
Users in Australia report that your API, hosted in Virginia, feels slow even though server-side latency is 20 ms. The payload is 30 KB per request and the client makes six requests per screen. Explain where the time goes and what you would change at the network layer.
Say your answer out loud first. Thirty seconds is enough.
Prompt 2
You must migrate the public API from one cloud provider to another with minimal client disruption. Clients connect to api.example.com, whose A record has a TTL of 24 hours. Plan the DNS part of the migration and name the risk you cannot fully remove.
Say your answer out loud first. Thirty seconds is enough.
Prompt 3
A video-calling product sends audio and video over TCP and users complain about freezes followed by fast-forward catch-up. Diagnose and propose a transport design.
Say your answer out loud first. Thirty seconds is enough.
Prompt 4
Design the edge of a public web application: what sits between the internet and your application servers, in what order, and what does each component do? Name which layer each operates at.
Say your answer out loud first. Thirty seconds is enough.