--- version: rssac002v3 service: j.root-servers.net start-period: '2018-02-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3513955797 dns-udp-queries-received-ipv6: 357175090 dns-tcp-queries-received-ipv4: 136444260 dns-tcp-queries-received-ipv6: 12748349 dns-udp-responses-sent-ipv4: 3436045378 dns-udp-responses-sent-ipv6: 355543455 dns-tcp-responses-sent-ipv4: 115310299 dns-tcp-responses-sent-ipv6: 12739398