--- version: rssac002v3 service: a.root-servers.net start-period: '2018-11-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4882607172 dns-udp-queries-received-ipv6: 766593700 dns-tcp-queries-received-ipv4: 146820451 dns-tcp-queries-received-ipv6: 35289057 dns-udp-responses-sent-ipv4: 4763013851 dns-udp-responses-sent-ipv6: 766052233 dns-tcp-responses-sent-ipv4: 142480632 dns-tcp-responses-sent-ipv6: 35517933