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3 votes
3 votes

Assume that "host1.mydomain.dom" has an IP address of 145.128.16.8. Which of the following options would be most appropriate as a subsequence of steps in performing the reverse lookup of 145.128.16.8? In the following options "NS" is an abbreviation of "nameserver".

A

Query a NS for the root domain and then NS for the "dom" domains

B

Directly query a NS for "dom" and then a NS for "mydomain.dom" domains

C

Query a NS for in-addr.arpa and then a NS for 128.145.in-addr.arpa domains

D

Directly query a NS for 145.in-addr.arpa and then a NS for 128.145.in-addr.arpa domains

2 Answers

2 votes
2 votes

Option C

(C) Query a NS for in-addr.arpa and then a NS for 128.145.in-addr.arpa domains.

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