--- version: rssac002v4 service: a.root-servers.net start-period: '2023-09-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6635601048 dns-udp-queries-received-ipv6: 1653785210 dns-tcp-queries-received-ipv4: 352017156 dns-tcp-queries-received-ipv6: 55497616 dns-udp-responses-sent-ipv4: 6467390807 dns-udp-responses-sent-ipv6: 1631138807 dns-tcp-responses-sent-ipv4: 334526453 dns-tcp-responses-sent-ipv6: 47931544