--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3981099069 dns-udp-queries-received-ipv6: 652555269 dns-tcp-queries-received-ipv4: 109346298 dns-tcp-queries-received-ipv6: 24356524 dns-udp-responses-sent-ipv4: 3876275933 dns-udp-responses-sent-ipv6: 652320426 dns-tcp-responses-sent-ipv4: 105708249 dns-tcp-responses-sent-ipv6: 24429068