--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8179044022 dns-udp-queries-received-ipv6: 1356306445 dns-tcp-queries-received-ipv4: 576386132 dns-tcp-queries-received-ipv6: 85066031 dns-udp-responses-sent-ipv4: 7317618265 dns-udp-responses-sent-ipv6: 1304564250 dns-tcp-responses-sent-ipv4: 418016076 dns-tcp-responses-sent-ipv6: 60339224