--- version: rssac002v4 service: a.root-servers.net start-period: '2023-07-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6691096892 dns-udp-queries-received-ipv6: 1685246591 dns-tcp-queries-received-ipv4: 348798472 dns-tcp-queries-received-ipv6: 52478819 dns-udp-responses-sent-ipv4: 6526500407 dns-udp-responses-sent-ipv6: 1670116838 dns-tcp-responses-sent-ipv4: 335543665 dns-tcp-responses-sent-ipv6: 46708058