Multiple choice technology operating systems

What is the port address of DNS?

  1. 50

  2. 51

  3. 52

  4. 53
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

DNS (Domain Name System) uses port 53 for both UDP and TCP protocols. UDP is used for standard DNS queries and responses, while TCP is used for larger responses or zone transfers. Ports 50, 51, and 52 are used for other protocols (IPSec AH, ESP, etc.) and are not DNS ports.

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