--- version: rssac002v3 service: a.root-servers.net start-period: '2021-02-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5996328162 dns-udp-queries-received-ipv6: 1332950832 dns-tcp-queries-received-ipv4: 306718057 dns-tcp-queries-received-ipv6: 146156447 dns-udp-responses-sent-ipv4: 5805052119 dns-udp-responses-sent-ipv6: 1331510226 dns-tcp-responses-sent-ipv4: 295044194 dns-tcp-responses-sent-ipv6: 146670319