--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3813901085 dns-udp-queries-received-ipv6: 550005451 dns-tcp-queries-received-ipv4: 106149376 dns-tcp-queries-received-ipv6: 20928950 dns-udp-responses-sent-ipv4: 3714862473 dns-udp-responses-sent-ipv6: 549482753 dns-tcp-responses-sent-ipv4: 102057966 dns-tcp-responses-sent-ipv6: 20969501