--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6556917315 dns-udp-queries-received-ipv6: 1300760961 dns-tcp-queries-received-ipv4: 197897447 dns-tcp-queries-received-ipv6: 37834403 dns-udp-responses-sent-ipv4: 6397940995 dns-udp-responses-sent-ipv6: 1300098897 dns-tcp-responses-sent-ipv4: 193619777 dns-tcp-responses-sent-ipv6: 39247836