--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3301031354 dns-udp-queries-received-ipv6: 414857860 dns-tcp-queries-received-ipv4: 116471980 dns-tcp-queries-received-ipv6: 17699190 dns-udp-responses-sent-ipv4: 3218010921 dns-udp-responses-sent-ipv6: 414580564 dns-tcp-responses-sent-ipv4: 113871238 dns-tcp-responses-sent-ipv6: 17710468