--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4126860145 dns-udp-queries-received-ipv6: 418117661 dns-tcp-queries-received-ipv4: 106292010 dns-tcp-queries-received-ipv6: 13437208 dns-udp-responses-sent-ipv4: 4121064299 dns-udp-responses-sent-ipv6: 418038758 dns-tcp-responses-sent-ipv4: 106548522 dns-tcp-responses-sent-ipv6: 13563050