--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4336789870 dns-udp-queries-received-ipv6: 434616201 dns-tcp-queries-received-ipv4: 140952093 dns-tcp-queries-received-ipv6: 15333833 dns-udp-responses-sent-ipv4: 4332965321 dns-udp-responses-sent-ipv6: 434554066 dns-tcp-responses-sent-ipv4: 141290462 dns-tcp-responses-sent-ipv6: 15445307