--- version: rssac002v3 service: a.root-servers.net start-period: '2019-07-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5810850683 dns-udp-queries-received-ipv6: 1169717806 dns-tcp-queries-received-ipv4: 175140624 dns-tcp-queries-received-ipv6: 34409976 dns-udp-responses-sent-ipv4: 5678489194 dns-udp-responses-sent-ipv6: 1168895455 dns-tcp-responses-sent-ipv4: 170499736 dns-tcp-responses-sent-ipv6: 35447662