--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7154294290 dns-udp-queries-received-ipv6: 2042542014 dns-tcp-queries-received-ipv4: 464205986 dns-tcp-queries-received-ipv6: 176625937 dns-udp-responses-sent-ipv4: 6657781749 dns-udp-responses-sent-ipv6: 1681640559 dns-tcp-responses-sent-ipv4: 397977718 dns-tcp-responses-sent-ipv6: 126486439