--- version: rssac002v3 service: a.root-servers.net start-period: '2019-02-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5968340124 dns-udp-queries-received-ipv6: 860487208 dns-tcp-queries-received-ipv4: 177512661 dns-tcp-queries-received-ipv6: 35322075 dns-udp-responses-sent-ipv4: 5843202353 dns-udp-responses-sent-ipv6: 859788351 dns-tcp-responses-sent-ipv4: 173809087 dns-tcp-responses-sent-ipv6: 32735316