--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4503040822 dns-udp-queries-received-ipv6: 370328489 dns-tcp-queries-received-ipv4: 148971677 dns-tcp-queries-received-ipv6: 16358928 dns-udp-responses-sent-ipv4: 4499913750 dns-udp-responses-sent-ipv6: 370290550 dns-tcp-responses-sent-ipv4: 149189100 dns-tcp-responses-sent-ipv6: 16332336