--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3744338900 dns-udp-queries-received-ipv6: 547888372 dns-tcp-queries-received-ipv4: 109556144 dns-tcp-queries-received-ipv6: 18978920 dns-udp-responses-sent-ipv4: 3649900700 dns-udp-responses-sent-ipv6: 547607570 dns-tcp-responses-sent-ipv4: 106034680 dns-tcp-responses-sent-ipv6: 19058033