--- version: rssac002v3 service: a.root-servers.net start-period: '2019-04-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5813411287 dns-udp-queries-received-ipv6: 830144772 dns-tcp-queries-received-ipv4: 220918411 dns-tcp-queries-received-ipv6: 29884444 dns-udp-responses-sent-ipv4: 5687803825 dns-udp-responses-sent-ipv6: 829660221 dns-tcp-responses-sent-ipv4: 217482215 dns-tcp-responses-sent-ipv6: 30217150