--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3658368664 dns-udp-queries-received-ipv6: 452820816 dns-tcp-queries-received-ipv4: 122452332 dns-tcp-queries-received-ipv6: 18208115 dns-udp-responses-sent-ipv4: 3561780158 dns-udp-responses-sent-ipv6: 452407321 dns-tcp-responses-sent-ipv4: 119774428 dns-tcp-responses-sent-ipv6: 18217566