--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4907559251 dns-udp-queries-received-ipv6: 389798986 dns-tcp-queries-received-ipv4: 121657283 dns-tcp-queries-received-ipv6: 13097351 dns-udp-responses-sent-ipv4: 4905302058 dns-udp-responses-sent-ipv6: 389776583 dns-tcp-responses-sent-ipv4: 123159077 dns-tcp-responses-sent-ipv6: 13258755