--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6879206976 dns-udp-queries-received-ipv6: 2339342715 dns-tcp-queries-received-ipv4: 460599864 dns-tcp-queries-received-ipv6: 143517470 dns-udp-responses-sent-ipv4: 6251799417 dns-udp-responses-sent-ipv6: 1908042156 dns-tcp-responses-sent-ipv4: 395516385 dns-tcp-responses-sent-ipv6: 104201327