--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7709640078 dns-udp-queries-received-ipv6: 1336548809 dns-tcp-queries-received-ipv4: 489870129 dns-tcp-queries-received-ipv6: 87611892 dns-udp-responses-sent-ipv4: 7128246440 dns-udp-responses-sent-ipv6: 1283551783 dns-tcp-responses-sent-ipv4: 374992943 dns-tcp-responses-sent-ipv6: 62133153