As long as the "." zone does not exist under forward lookup zones in DNS, the DNS service uses the root hint servers. The root hint servers are well-known servers on the Internet that help all DNS servers resolve name queries.
What is ICMP?
What is Brouter?
What is frame relay, in which layer it comes?
What is External Data Representation?
What is Bandwidth?
What protocol is used by DNS name servers?
What is the range of IP addresses in the classes of internet addresses?
What are the important topologies for networks?
Difference between bit rate and baud rate?
What is anonymous FTP and why would you use it?
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