--- version: rssac002v3 service: a.root-servers.net start-period: '2021-05-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5726443187 dns-udp-queries-received-ipv6: 1126694298 dns-tcp-queries-received-ipv4: 328450084 dns-tcp-queries-received-ipv6: 105606364 dns-udp-responses-sent-ipv4: 5667557388 dns-udp-responses-sent-ipv6: 1153256198 dns-tcp-responses-sent-ipv4: 306547461 dns-tcp-responses-sent-ipv6: 105805526