--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4065334794 dns-udp-queries-received-ipv6: 361205189 dns-tcp-queries-received-ipv4: 143231996 dns-tcp-queries-received-ipv6: 16454658 dns-udp-responses-sent-ipv4: 4062532951 dns-udp-responses-sent-ipv6: 361165176 dns-tcp-responses-sent-ipv4: 143426901 dns-tcp-responses-sent-ipv6: 16493857