; <<>> DiG 9.4.0 <<>> @::1 +time=60 aaaa mainb.jnu.edu.cn.
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34930
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;mainb.jnu.edu.cn.		IN	AAAA

;; ANSWER SECTION:
mainb.jnu.edu.cn.	86400	IN	AAAA	2001:da8:2002::2

;; AUTHORITY SECTION:
jnu.edu.cn.		86379	IN	NS	mainb.jnu.edu.cn.
jnu.edu.cn.		86379	IN	NS	maina.jnu.edu.cn.

;; Query time: 457 msec
;; SERVER: ::1#53(::1)
;; WHEN: Mon Mar 11 10:24:48 2013
;; MSG SIZE  rcvd: 96