--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4127727450 dns-udp-queries-received-ipv6: 409148080 dns-tcp-queries-received-ipv4: 104422330 dns-tcp-queries-received-ipv6: 13721441 dns-udp-responses-sent-ipv4: 4122715804 dns-udp-responses-sent-ipv6: 409078777 dns-tcp-responses-sent-ipv4: 104997701 dns-tcp-responses-sent-ipv6: 13860382