--- version: rssac002v3 service: a.root-servers.net start-period: '2019-06-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5950459855 dns-udp-queries-received-ipv6: 1069570961 dns-tcp-queries-received-ipv4: 174578105 dns-tcp-queries-received-ipv6: 30689968 dns-udp-responses-sent-ipv4: 5818091984 dns-udp-responses-sent-ipv6: 1068984039 dns-tcp-responses-sent-ipv4: 170886836 dns-tcp-responses-sent-ipv6: 31380017