--- version: rssac002v4 service: a.root-servers.net start-period: '2023-07-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6743529520 dns-udp-queries-received-ipv6: 1663267211 dns-tcp-queries-received-ipv4: 357451948 dns-tcp-queries-received-ipv6: 81435200 dns-udp-responses-sent-ipv4: 6564930742 dns-udp-responses-sent-ipv6: 1651473096 dns-tcp-responses-sent-ipv4: 340326052 dns-tcp-responses-sent-ipv6: 77456910