1 1 example.com. 86400 IN RRSIG SOA 13 2 100000 [expiry] [inception] [keytag] example.com. ...
2 1 example.com. 86400 IN SOA ns1.example.com. ahu.example.com. 2847484148 28800 7200 604800 86400
3 1 usa.example.com. 86400 IN NSEC *.w1.example.com. NS RRSIG NSEC
4 1 usa.example.com. 86400 IN RRSIG NSEC 13 3 86400 [expiry] [inception] [keytag] example.com. ...
6 Rcode: 0 (No Error), RD: 0, QR: 1, TC: 0, AA: 1, opcode: 0
7 Reply to question for qname='usa.example.com.', qtype=DS