Question and response
Question
dig bcbsf.com. A
Answer
bcbsf.com. 0 A 157.174.228.214
Authority
bcbsf.com. 3600 NS dns1.bcbsfl.com.
bcbsf.com. 3600 NS dns2.bcbsfl.com.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0