Foundation glossary/Networking
DNS
Companion card for the Foundation course — study the related lesson for full progress.
Simple explanation
Phonebook of the internet.
Technical explanation
Name → A/AAAA/MX/TXT records.
Real-life scenario
Typing phonepe.com finds the real servers — fake DNS/Wi‑Fi can mislead you.
Security relevance
Poisoned or fake DNS sends users to attacker sites.
Practical example
example.com → IP.
Name
Resolver
IP
Mini quiz
DNS’s everyday job is:
Related lesson
Continue in the Foundation course: open lesson →