--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6756361426 dns-udp-queries-received-ipv6: 1962664524 dns-tcp-queries-received-ipv4: 423747172 dns-tcp-queries-received-ipv6: 145372875 dns-udp-responses-sent-ipv4: 6300946997 dns-udp-responses-sent-ipv6: 1645667873 dns-tcp-responses-sent-ipv4: 372750990 dns-tcp-responses-sent-ipv6: 108539678