--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5072517156 dns-udp-queries-received-ipv6: 1557172711 dns-tcp-queries-received-ipv4: 325004251 dns-tcp-queries-received-ipv6: 55325810 dns-udp-responses-sent-ipv4: 4870226966 dns-udp-responses-sent-ipv6: 1559189742 dns-tcp-responses-sent-ipv4: 304863328 dns-tcp-responses-sent-ipv6: 55274650