--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3600493019 dns-udp-queries-received-ipv6: 419307278 dns-tcp-queries-received-ipv4: 152915857 dns-tcp-queries-received-ipv6: 16130418 dns-udp-responses-sent-ipv4: 3597105477 dns-udp-responses-sent-ipv6: 419250811 dns-tcp-responses-sent-ipv4: 152765974 dns-tcp-responses-sent-ipv6: 16248208