--- version: rssac002v3 service: d.root-servers.net start-period: '2018-04-30T00:00:00Z' end-period: '2018-04-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3765318456 dns-udp-queries-received-ipv6: 619076303 dns-tcp-queries-received-ipv4: 94275686 dns-tcp-queries-received-ipv6: 13809894 dns-udp-responses-sent-ipv4: 3764504796 dns-udp-responses-sent-ipv6: 619017009 dns-tcp-responses-sent-ipv4: 94240383 dns-tcp-responses-sent-ipv6: 13807911