--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8084759586 dns-udp-queries-received-ipv6: 1286912164 dns-tcp-queries-received-ipv4: 797540612 dns-tcp-queries-received-ipv6: 81052483 dns-udp-responses-sent-ipv4: 7378235775 dns-udp-responses-sent-ipv6: 1239291422 dns-tcp-responses-sent-ipv4: 566883730 dns-tcp-responses-sent-ipv6: 58424655