--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8787181290 dns-udp-queries-received-ipv6: 1467827788 dns-tcp-queries-received-ipv4: 310482364 dns-tcp-queries-received-ipv6: 127696954 dns-udp-responses-sent-ipv4: 8530081021 dns-udp-responses-sent-ipv6: 1458162463 dns-tcp-responses-sent-ipv4: 305890386 dns-tcp-responses-sent-ipv6: 127920209