--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6987201723 dns-udp-queries-received-ipv6: 2195819341 dns-tcp-queries-received-ipv4: 432418013 dns-tcp-queries-received-ipv6: 329476132 dns-udp-responses-sent-ipv4: 6567947574 dns-udp-responses-sent-ipv6: 1920258006 dns-tcp-responses-sent-ipv4: 387969565 dns-tcp-responses-sent-ipv6: 296763556