--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7506939576 dns-udp-queries-received-ipv6: 373567656 dns-tcp-queries-received-ipv4: 113682021 dns-tcp-queries-received-ipv6: 16122054 dns-udp-responses-sent-ipv4: 7427074857 dns-udp-responses-sent-ipv6: 373215443 dns-tcp-responses-sent-ipv4: 113730025 dns-tcp-responses-sent-ipv6: 16167643