--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8260127639 dns-udp-queries-received-ipv6: 1774686602 dns-tcp-queries-received-ipv4: 197600936 dns-tcp-queries-received-ipv6: 38610867 dns-udp-responses-sent-ipv4: 8064565103 dns-udp-responses-sent-ipv6: 1770212470 dns-tcp-responses-sent-ipv4: 193173715 dns-tcp-responses-sent-ipv6: 38625557