gslin@home [~] [19:17/W4] dig 928.tw ns @a.dns.tw

; <<>> DiG 9.10.3-P4-Ubuntu <<>> 928.tw ns @a.dns.tw
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64601
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;928.tw.                                IN      NS

;; AUTHORITY SECTION:
928.tw.                 3600    IN      NS      cloudns102.pwserv.com.
928.tw.                 3600    IN      NS      cloudns101.pwserv.com.

;; Query time: 103 msec
;; SERVER: 2001:45b1:0:5::25#53(2001:45b1:0:5::25)
;; WHEN: Tue Jun 19 19:17:27 CST 2018
;; MSG SIZE  rcvd: 95