--- version: rssac002v3 service: a.root-servers.net start-period: '2019-06-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5976460124 dns-udp-queries-received-ipv6: 1068769943 dns-tcp-queries-received-ipv4: 167212082 dns-tcp-queries-received-ipv6: 30944084 dns-udp-responses-sent-ipv4: 5844434511 dns-udp-responses-sent-ipv6: 1068190090 dns-tcp-responses-sent-ipv4: 163650104 dns-tcp-responses-sent-ipv6: 31647965