--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8511591347 dns-udp-queries-received-ipv6: 1507824428 dns-tcp-queries-received-ipv4: 317238102 dns-tcp-queries-received-ipv6: 129839582 dns-udp-responses-sent-ipv4: 8234007219 dns-udp-responses-sent-ipv6: 1499922712 dns-tcp-responses-sent-ipv4: 313673708 dns-tcp-responses-sent-ipv6: 130057588