--- version: rssac002v4 service: a.root-servers.net start-period: '2023-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7227307613 dns-udp-queries-received-ipv6: 2509989051 dns-tcp-queries-received-ipv4: 461101390 dns-tcp-queries-received-ipv6: 437146447 dns-udp-responses-sent-ipv4: 6795616854 dns-udp-responses-sent-ipv6: 2230281462 dns-tcp-responses-sent-ipv4: 412935302 dns-tcp-responses-sent-ipv6: 403174567