--- version: rssac002v3 service: a.root-servers.net start-period: '2019-05-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5930687033 dns-udp-queries-received-ipv6: 892740233 dns-tcp-queries-received-ipv4: 194014794 dns-tcp-queries-received-ipv6: 29707160 dns-udp-responses-sent-ipv4: 5801371477 dns-udp-responses-sent-ipv6: 892192691 dns-tcp-responses-sent-ipv4: 190807210 dns-tcp-responses-sent-ipv6: 30431685