--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3301325327 dns-udp-queries-received-ipv6: 360085398 dns-tcp-queries-received-ipv4: 165040393 dns-tcp-queries-received-ipv6: 14564917 dns-udp-responses-sent-ipv4: 3298920246 dns-udp-responses-sent-ipv6: 359925969 dns-tcp-responses-sent-ipv4: 165138729 dns-tcp-responses-sent-ipv6: 14722508