; <<>> DiG 9.4.0 <<>> @68.28.242.91 +time=30 aaaa external.ak.fbcdn.net
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51073
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 8, ADDITIONAL: 0

;; QUESTION SECTION:
;external.ak.fbcdn.net.		IN	AAAA

;; ANSWER SECTION:
external.ak.fbcdn.net.	7200	IN	CNAME	external.ak.fbcdn.net.edgesuite.net.
external.ak.fbcdn.net.edgesuite.net. 360 IN CNAME a1920.dsw4.akamai.net.
a1920.dsw4.akamai.net.	20	IN	AAAA	2600:3:500:3::d01c:e028
a1920.dsw4.akamai.net.	20	IN	AAAA	2600:3:500:3::d01c:e023

;; AUTHORITY SECTION:
dsw4.akamai.net.	21107	IN	NS	n5dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	n6dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	n1dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	n0dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	n4dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	n2dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	n3dsw4.akamai.net.
dsw4.akamai.net.	21107	IN	NS	a0dsw4.akamai.net.

;; Query time: 180 msec
;; SERVER: 68.28.242.91#53(68.28.242.91)
;; WHEN: Fri Nov 30 02:36:10 2012
;; MSG SIZE  rcvd: 341