DNS

Question 1
Consider the resolution of the domain name www.gate.org.in by a DNS resolver. Assume that no resource records are cached anywhere across the DNS servers and that iterative query mechanism is used in the resolution. The number of DNS query-response pairs involved in completely resolving the domain name Is_____________.
A
3
Computer-NetworksDNSGATE 2022Video-Explanation
Question 1 Explanation: 
In the iterative query the DNS resolver go to the following three servers
1.root server, 2. TLD DNS server, 3. authoritative server.
So there will be three pairs of request and response here.
There is 1 question to complete.

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