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CCNA - clarification on UDP

bgowrisai

Member
Alumni
It is explained in CCNA simplilearn training video that UDP is used to resolve DNS.
The previous explanation says that DNS uses TCP port 53.

Am bit confused.Can any body help me understand?
 

Akhilesh Anand

Manager
Alumni
Hi,
DNS uses UDP or TCP depending on a few criteria which is properly explained in the slides.
TCP & UDP both use the same port (port 53) for resolving DNS.

I would like you to explain your doubt in detail for me to provide a satisfactory reply.

Regards,
Akhilesh
 
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