i.root-servers.org. A AAAA RRSIG NSEC
Question and response
Question
dig mx.i.root-servers.org. NSEC
Answer
mx.i.root-servers.org. 3600 NSEC i.root-servers.org. A AAAA RRSIG NSEC
Authority
i.root-servers.org. 86400 NS nna.netnod.se.
i.root-servers.org. 86400 NS nnb.netnod.se.
i.root-servers.org. 86400 NS nnp.netnod.se.
i.root-servers.org. 86400 NS nnu.netnod.se.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0