--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4614877890 dns-udp-queries-received-ipv6: 351633695 dns-tcp-queries-received-ipv4: 132164514 dns-tcp-queries-received-ipv6: 14551397 dns-udp-responses-sent-ipv4: 4552067613 dns-udp-responses-sent-ipv6: 351490225 dns-tcp-responses-sent-ipv4: 133136956 dns-tcp-responses-sent-ipv6: 14584720