--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3723652373 dns-udp-queries-received-ipv6: 537062805 dns-tcp-queries-received-ipv4: 107892200 dns-tcp-queries-received-ipv6: 20579063 dns-udp-responses-sent-ipv4: 3625508426 dns-udp-responses-sent-ipv6: 536776426 dns-tcp-responses-sent-ipv4: 104153513 dns-tcp-responses-sent-ipv6: 20627759