--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5046112202 dns-udp-queries-received-ipv6: 1617422519 dns-tcp-queries-received-ipv4: 292619676 dns-tcp-queries-received-ipv6: 53799633 dns-udp-responses-sent-ipv4: 4910650330 dns-udp-responses-sent-ipv6: 1628630261 dns-tcp-responses-sent-ipv4: 274251110 dns-tcp-responses-sent-ipv6: 53782368