--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6515503416 dns-udp-queries-received-ipv6: 2016380327 dns-tcp-queries-received-ipv4: 413972659 dns-tcp-queries-received-ipv6: 110619844 dns-udp-responses-sent-ipv4: 6134232920 dns-udp-responses-sent-ipv6: 1854554034 dns-tcp-responses-sent-ipv4: 351921092 dns-tcp-responses-sent-ipv6: 91972292