--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3530643052 dns-udp-queries-received-ipv6: 377860838 dns-tcp-queries-received-ipv4: 144542264 dns-tcp-queries-received-ipv6: 15280872 dns-udp-responses-sent-ipv4: 3527795654 dns-udp-responses-sent-ipv6: 377751435 dns-tcp-responses-sent-ipv4: 144634419 dns-tcp-responses-sent-ipv6: 15395673