--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9377363456 dns-udp-queries-received-ipv6: 1794693771 dns-tcp-queries-received-ipv4: 321547342 dns-tcp-queries-received-ipv6: 149339833 dns-udp-responses-sent-ipv4: 9099841905 dns-udp-responses-sent-ipv6: 1771037149 dns-tcp-responses-sent-ipv4: 315272416 dns-tcp-responses-sent-ipv6: 146379286