Q77

MCQ2 marks, −0.5

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

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