--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7171741260 dns-udp-queries-received-ipv6: 445639865 dns-tcp-queries-received-ipv4: 132886717 dns-tcp-queries-received-ipv6: 14204426 dns-udp-responses-sent-ipv4: 7169562369 dns-udp-responses-sent-ipv6: 445599511 dns-tcp-responses-sent-ipv4: 135140734 dns-tcp-responses-sent-ipv6: 14336675