--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6424870430 dns-udp-queries-received-ipv6: 1099842646 dns-tcp-queries-received-ipv4: 190238871 dns-tcp-queries-received-ipv6: 33924876 dns-udp-responses-sent-ipv4: 6246998817 dns-udp-responses-sent-ipv6: 1099238351 dns-tcp-responses-sent-ipv4: 184878633 dns-tcp-responses-sent-ipv6: 34861561