--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5834939035 dns-udp-queries-received-ipv6: 1314273204 dns-tcp-queries-received-ipv4: 171450670 dns-tcp-queries-received-ipv6: 31157932 dns-udp-responses-sent-ipv4: 5697315740 dns-udp-responses-sent-ipv6: 1313533381 dns-tcp-responses-sent-ipv4: 166823759 dns-tcp-responses-sent-ipv6: 31765997