--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6518848567 dns-udp-queries-received-ipv6: 1909361241 dns-tcp-queries-received-ipv4: 441912710 dns-tcp-queries-received-ipv6: 168065090 dns-udp-responses-sent-ipv4: 6063557462 dns-udp-responses-sent-ipv6: 1596386147 dns-tcp-responses-sent-ipv4: 384612612 dns-tcp-responses-sent-ipv6: 122999329