--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3231858933 dns-udp-queries-received-ipv6: 393861309 dns-tcp-queries-received-ipv4: 97609420 dns-tcp-queries-received-ipv6: 14063676 dns-udp-responses-sent-ipv4: 3229504847 dns-udp-responses-sent-ipv6: 393818977 dns-tcp-responses-sent-ipv4: 97790566 dns-tcp-responses-sent-ipv6: 14182958