--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2868050381 dns-udp-queries-received-ipv6: 359508718 dns-tcp-queries-received-ipv4: 145357708 dns-tcp-queries-received-ipv6: 14786651 dns-udp-responses-sent-ipv4: 2866175813 dns-udp-responses-sent-ipv6: 359441979 dns-tcp-responses-sent-ipv4: 145439500 dns-tcp-responses-sent-ipv6: 14897558