--- version: rssac002v3 service: a.root-servers.net start-period: '2019-05-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6022740833 dns-udp-queries-received-ipv6: 969741238 dns-tcp-queries-received-ipv4: 153294681 dns-tcp-queries-received-ipv6: 28393116 dns-udp-responses-sent-ipv4: 5890375366 dns-udp-responses-sent-ipv6: 969030059 dns-tcp-responses-sent-ipv4: 150283066 dns-tcp-responses-sent-ipv6: 29024395