--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5650953535 dns-udp-queries-received-ipv6: 1192256202 dns-tcp-queries-received-ipv4: 298994323 dns-tcp-queries-received-ipv6: 103309170 dns-udp-responses-sent-ipv4: 5481940544 dns-udp-responses-sent-ipv6: 1189855320 dns-tcp-responses-sent-ipv4: 288063034 dns-tcp-responses-sent-ipv6: 103573472