dig で google.com の A レコードを要求する。返信から google.com に対応する IP アドレスは複数あることが分かる。
$ dig @8.8.8.8 google.com ; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> @8.8.8.8 google.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34905 ;; flags: qr rd ra; QUERY: 1, ANSWER: 11, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;google.com. IN A ;; ANSWER SECTION: google.com. 299 IN A 173.194.126.231 google.com. 299 IN A 173.194.126.229 google.com. 299 IN A 173.194.126.227 google.com. 299 IN A 173.194.126.238 google.com. 299 IN A 173.194.126.226 google.com. 299 IN A 173.194.126.232 google.com. 299 IN A 173.194.126.233 google.com. 299 IN A 173.194.126.224 google.com. 299 IN A 173.194.126.228 google.com. 299 IN A 173.194.126.225 google.com. 299 IN A 173.194.126.230 ;; Query time: 53 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: ************************ ;; MSG SIZE rcvd: 204