--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7039834103 dns-udp-queries-received-ipv6: 2555720817 dns-tcp-queries-received-ipv4: 468141225 dns-tcp-queries-received-ipv6: 186462184 dns-udp-responses-sent-ipv4: 6368177831 dns-udp-responses-sent-ipv6: 2046794453 dns-tcp-responses-sent-ipv4: 404467608 dns-tcp-responses-sent-ipv6: 135310394