--- version: rssac002v3 service: a.root-servers.net start-period: '2020-03-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8726865337 dns-udp-queries-received-ipv6: 1425929123 dns-tcp-queries-received-ipv4: 301412701 dns-tcp-queries-received-ipv6: 104947683 dns-udp-responses-sent-ipv4: 8474775176 dns-udp-responses-sent-ipv6: 1420239418 dns-tcp-responses-sent-ipv4: 297168227 dns-tcp-responses-sent-ipv6: 105405682