--- version: rssac002v4 service: a.root-servers.net start-period: '2022-04-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4976378532 dns-udp-queries-received-ipv6: 1626547507 dns-tcp-queries-received-ipv4: 302933626 dns-tcp-queries-received-ipv6: 59359294 dns-udp-responses-sent-ipv4: 4844812885 dns-udp-responses-sent-ipv6: 1630195792 dns-tcp-responses-sent-ipv4: 282298764 dns-tcp-responses-sent-ipv6: 59358658