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user68350
Asked: 2011-01-27 10:38:20 +0800 CST

what are root dns server [duplicate]

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Possible Duplicate:
What is the DNS root zone and domain?

according to what i have understood so far a root dns servers responds to top level domain name resolution requests. Am i correct ?

And why is it that there are only 13 root servers ?

domain-name-system

1 Answers

  1. And why is it that there are only 13 root servers ?

    UDP DNS messages are limited to 512 bytes. 13 root server ~ 5oo bytes.

    according to what i have understood so far a root dns servers responds to top level domain name resolution requests. Am i correct ?

    Yes.

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