--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8777745602 dns-udp-queries-received-ipv6: 1711466345 dns-tcp-queries-received-ipv4: 352774450 dns-tcp-queries-received-ipv6: 125254188 dns-udp-responses-sent-ipv4: 8528627043 dns-udp-responses-sent-ipv6: 1693026668 dns-tcp-responses-sent-ipv4: 343573373 dns-tcp-responses-sent-ipv6: 122233482