--- version: rssac002v3 service: i.root-servers.net start-period: '2018-03-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5370013830 dns-udp-queries-received-ipv6: 715529480 dns-tcp-queries-received-ipv4: 117420014 dns-tcp-queries-received-ipv6: 13750255 dns-udp-responses-sent-ipv4: 5360649559 dns-udp-responses-sent-ipv6: 711222298 dns-tcp-responses-sent-ipv4: 115862013 dns-tcp-responses-sent-ipv6: 13833958