--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3255513489 dns-udp-queries-received-ipv6: 367553949 dns-tcp-queries-received-ipv4: 134107486 dns-tcp-queries-received-ipv6: 18665418 dns-udp-responses-sent-ipv4: 3250516440 dns-udp-responses-sent-ipv6: 367506001 dns-tcp-responses-sent-ipv4: 134379589 dns-tcp-responses-sent-ipv6: 18718502