--- version: rssac002v3 service: a.root-servers.net start-period: '2018-11-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4626311967 dns-udp-queries-received-ipv6: 744740648 dns-tcp-queries-received-ipv4: 141473038 dns-tcp-queries-received-ipv6: 30531418 dns-udp-responses-sent-ipv4: 4514729660 dns-udp-responses-sent-ipv6: 744101424 dns-tcp-responses-sent-ipv4: 138619455 dns-tcp-responses-sent-ipv6: 30691516