--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4131046242 dns-udp-queries-received-ipv6: 427307763 dns-tcp-queries-received-ipv4: 106002107 dns-tcp-queries-received-ipv6: 15281849 dns-udp-responses-sent-ipv4: 4125885690 dns-udp-responses-sent-ipv6: 427284330 dns-tcp-responses-sent-ipv4: 105606299 dns-tcp-responses-sent-ipv6: 15401311