--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4127742846 dns-udp-queries-received-ipv6: 456208692 dns-tcp-queries-received-ipv4: 121557378 dns-tcp-queries-received-ipv6: 18815325 dns-udp-responses-sent-ipv4: 4033954955 dns-udp-responses-sent-ipv6: 455859021 dns-tcp-responses-sent-ipv4: 118273884 dns-tcp-responses-sent-ipv6: 18829172