--- version: rssac002v3 service: a.root-servers.net start-period: '2019-06-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5944115661 dns-udp-queries-received-ipv6: 1068640651 dns-tcp-queries-received-ipv4: 174236231 dns-tcp-queries-received-ipv6: 37704200 dns-udp-responses-sent-ipv4: 5807627387 dns-udp-responses-sent-ipv6: 1068067812 dns-tcp-responses-sent-ipv4: 171572490 dns-tcp-responses-sent-ipv6: 38865482