--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6081311612 dns-udp-queries-received-ipv6: 1995438810 dns-tcp-queries-received-ipv4: 326231849 dns-tcp-queries-received-ipv6: 73175420 dns-udp-responses-sent-ipv4: 6314918832 dns-udp-responses-sent-ipv6: 1944948310 dns-tcp-responses-sent-ipv4: 297335042 dns-tcp-responses-sent-ipv6: 72727406