--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3585380725 dns-udp-queries-received-ipv6: 404426351 dns-tcp-queries-received-ipv4: 101476423 dns-tcp-queries-received-ipv6: 14978619 dns-udp-responses-sent-ipv4: 3579807130 dns-udp-responses-sent-ipv6: 404395242 dns-tcp-responses-sent-ipv4: 101671950 dns-tcp-responses-sent-ipv6: 15076126