; <<>> DiG 9.4.0 <<>> @::1 +time=30 aaaa au.v4.download.windowsupdate.com
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55613
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;au.v4.download.windowsupdate.com. IN	AAAA

;; ANSWER SECTION:
au.v4.download.windowsupdate.com. 1466 IN CNAME	bg.v4.dl.windowsupdate.com.nsatc.net.
bg.v4.dl.windowsupdate.com.nsatc.net. 6	IN CNAME w8v4.audownload.windowsupdate.nsatc.net.
w8v4.audownload.windowsupdate.nsatc.net. 600 IN	CNAME msftsrvcs.vo.llnwd.net.
msftsrvcs.vo.llnwd.net.	350	IN	AAAA	2607:f4e8:110:a000::1

;; AUTHORITY SECTION:
llnwd.net.		3600	IN	NS	dns12.llnwd.net.
llnwd.net.		3600	IN	NS	dns11.llnwd.net.

;; Query time: 63 msec
;; SERVER: ::1#53(::1)
;; WHEN: Mon May  4 16:17:48 2015
;; MSG SIZE  rcvd: 245