--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3862921950 dns-udp-queries-received-ipv6: 574142184 dns-tcp-queries-received-ipv4: 107416714 dns-tcp-queries-received-ipv6: 23668644 dns-udp-responses-sent-ipv4: 3760696397 dns-udp-responses-sent-ipv6: 573845537 dns-tcp-responses-sent-ipv4: 103291468 dns-tcp-responses-sent-ipv6: 23711707