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Suppose you query a root name server for an A record for-(Answered)

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Question

Suppose?you?query?a?root?name?server?for?an?A?record?for?www.facebook.com. What?is?the?most?likely?reply?

options:

?An answer?section?including?a single?A record?for www.facebook.com.?An?authority?section?including?an?NS?record?for?facebook.com? and?an?additional section?containing?an?A?record?for?the?named?host.?An?answer?section?including?more?than?one?A?record?for?www.facebook.com?An?authority?section?of?one?or?more?NS?records?for?.com?name? servers?and no?additional?section.?An?answer?section?of?one?or?more?NS?records?for?.com?name?servers?and? an?additional section?of?NS?records?for?other?root?servers.?An?authority?section?of?one?or?more?NS?records?for?.com?name?servers? and?an?additional section?of?A?records?for?those?name?servers.

 

Paper#9210710 | Written in 27-Jul-2016

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