--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6429477808 dns-udp-queries-received-ipv6: 1384694057 dns-tcp-queries-received-ipv4: 176765294 dns-tcp-queries-received-ipv6: 33852299 dns-udp-responses-sent-ipv4: 6286708313 dns-udp-responses-sent-ipv6: 1383999044 dns-tcp-responses-sent-ipv4: 172136011 dns-tcp-responses-sent-ipv6: 34502995