query
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1. As before construct a query for 0.0.9.128.IN-ADDR.ARPA.
Retrieve:
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... RR was found, repeat using mask from RR
(255.255.255.0), constructing a query for
0.2.9.128.IN-ADDR.ARPA. Retrieve:
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... 3. Since another A RR was found, repeat using mask
255.255.255.240 (x'FFFFFFF0'). constructing a query for
16.2.9.128.IN-ADDR.ARPA. Retrieve:
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