--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3215069104 dns-udp-queries-received-ipv6: 334267060 dns-tcp-queries-received-ipv4: 106356279 dns-tcp-queries-received-ipv6: 14640146 dns-udp-responses-sent-ipv4: 3209242358 dns-udp-responses-sent-ipv6: 334178489 dns-tcp-responses-sent-ipv4: 106636930 dns-tcp-responses-sent-ipv6: 14689330