Question and response
Question
dig avcr.cz. A
Answer
avcr.cz. 600 A 147.231.163.240
Authority
avcr.cz. 600 NS nsa.ces.net.
avcr.cz. 600 NS visla.utia.cas.cz.
avcr.cz. 600 NS academy.cas.cz.
Additional
. 0 OPT ; payload 1472, xrcode 0, version 0, flags 0