Networking Services: What is DNS? | Google IT Support Certificate

The domain name system, or DNS, is a system that converts domain names into IP addresses. You will learn the anatomy of a domain name, the most common DNS types, and the many steps of a DNS lookup. Finish off with a look at DNS zones and find out how they make network administrators’ lives easier.

0:00 Introduction to Networking Services
1:57 Why Do We Need DNS?
6:04 The Many Steps of Name Resolution
14:36 DNS and UDP
20:42 Resource Record Types
28:32 Anatomy of a Domain Name
31:57 DNS Zones

This video is part of the Google IT Support Certificate, which introduces learners to troubleshooting, customer service, networking, operating systems, systems administration, and security. The program, created by Google employees in the field, is designed to provide you with job-ready skills in about 6 months to start or advance your career in IT.

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