--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6367271782 dns-udp-queries-received-ipv6: 2009002017 dns-tcp-queries-received-ipv4: 417816366 dns-tcp-queries-received-ipv6: 145703221 dns-udp-responses-sent-ipv4: 5843696321 dns-udp-responses-sent-ipv6: 1689495935 dns-tcp-responses-sent-ipv4: 356908882 dns-tcp-responses-sent-ipv6: 119959193