--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3641899945 dns-udp-queries-received-ipv6: 358414871 dns-tcp-queries-received-ipv4: 104382373 dns-tcp-queries-received-ipv6: 15476830 dns-udp-responses-sent-ipv4: 3638579735 dns-udp-responses-sent-ipv6: 358338026 dns-tcp-responses-sent-ipv4: 104689209 dns-tcp-responses-sent-ipv6: 15526818