--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7715855302 dns-udp-queries-received-ipv6: 2329789585 dns-tcp-queries-received-ipv4: 505398727 dns-tcp-queries-received-ipv6: 151143777 dns-udp-responses-sent-ipv4: 7082646706 dns-udp-responses-sent-ipv6: 2024690916 dns-tcp-responses-sent-ipv4: 432495379 dns-tcp-responses-sent-ipv6: 119292649