--- version: rssac002v3 service: d.root-servers.net start-period: '2018-04-20T00:00:00Z' end-period: '2018-04-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3946206328 dns-udp-queries-received-ipv6: 577214417 dns-tcp-queries-received-ipv4: 104237083 dns-tcp-queries-received-ipv6: 15358974 dns-udp-responses-sent-ipv4: 3945945955 dns-udp-responses-sent-ipv6: 577166173 dns-tcp-responses-sent-ipv4: 104183765 dns-tcp-responses-sent-ipv6: 15357306