--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5857135048 dns-udp-queries-received-ipv6: 370483344 dns-tcp-queries-received-ipv4: 98962355 dns-tcp-queries-received-ipv6: 16277135 dns-udp-responses-sent-ipv4: 5777420399 dns-udp-responses-sent-ipv6: 370122249 dns-tcp-responses-sent-ipv4: 101423311 dns-tcp-responses-sent-ipv6: 16335330