--- version: rssac002v4 service: a.root-servers.net start-period: '2024-05-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 11668813197 dns-udp-queries-received-ipv6: 1959510676 dns-tcp-queries-received-ipv4: 375774503 dns-tcp-queries-received-ipv6: 39350549 dns-udp-responses-sent-ipv4: 11477119810 dns-udp-responses-sent-ipv6: 1955499310 dns-tcp-responses-sent-ipv4: 347432440 dns-tcp-responses-sent-ipv6: 39294321