Uploaded September 2025 | Updated September 2026, 1 week ago

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CBT Nuggets trainer Keith Barker explains Domain Name System (DNS) and how it operates.

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Read more in our blog _What are Root DNS Servers?_ for more info: blog.cbt.gg/z7mv
_What is DNS Recursive Lookup? How Does it Compare to Iterative Lookup?_ : blog.cbt.gg/odt3

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