--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8187472994 dns-udp-queries-received-ipv6: 1403193586 dns-tcp-queries-received-ipv4: 295412017 dns-tcp-queries-received-ipv6: 135155515 dns-udp-responses-sent-ipv4: 7944953746 dns-udp-responses-sent-ipv6: 1388895476 dns-tcp-responses-sent-ipv4: 290066385 dns-tcp-responses-sent-ipv6: 133890274