--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3292580666 dns-udp-queries-received-ipv6: 403710337 dns-tcp-queries-received-ipv4: 163568063 dns-tcp-queries-received-ipv6: 7356873 dns-udp-responses-sent-ipv4: 3291274551 dns-udp-responses-sent-ipv6: 403687296 dns-tcp-responses-sent-ipv4: 163482932 dns-tcp-responses-sent-ipv6: 7474871