--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6919701187 dns-udp-queries-received-ipv6: 1941365636 dns-tcp-queries-received-ipv4: 434395765 dns-tcp-queries-received-ipv6: 166795302 dns-udp-responses-sent-ipv4: 6500715586 dns-udp-responses-sent-ipv6: 1668936743 dns-tcp-responses-sent-ipv4: 389032531 dns-tcp-responses-sent-ipv6: 134078908