--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7480330708 dns-udp-queries-received-ipv6: 2261384069 dns-tcp-queries-received-ipv4: 479990100 dns-tcp-queries-received-ipv6: 168437347 dns-udp-responses-sent-ipv4: 6857759304 dns-udp-responses-sent-ipv6: 1948526740 dns-tcp-responses-sent-ipv4: 406137684 dns-tcp-responses-sent-ipv6: 138769298