--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9410665626 dns-udp-queries-received-ipv6: 1874805265 dns-tcp-queries-received-ipv4: 307983528 dns-tcp-queries-received-ipv6: 136233908 dns-udp-responses-sent-ipv4: 9113832243 dns-udp-responses-sent-ipv6: 1820558849 dns-tcp-responses-sent-ipv4: 303459791 dns-tcp-responses-sent-ipv6: 136287869