--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5967799022 dns-udp-queries-received-ipv6: 1761066730 dns-tcp-queries-received-ipv4: 323257756 dns-tcp-queries-received-ipv6: 74016133 dns-udp-responses-sent-ipv4: 5798174588 dns-udp-responses-sent-ipv6: 1708425365 dns-tcp-responses-sent-ipv4: 290590560 dns-tcp-responses-sent-ipv6: 72793704