--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6537889957 dns-udp-queries-received-ipv6: 1389223966 dns-tcp-queries-received-ipv4: 181690229 dns-tcp-queries-received-ipv6: 32120616 dns-udp-responses-sent-ipv4: 6381493035 dns-udp-responses-sent-ipv6: 1387928867 dns-tcp-responses-sent-ipv4: 177207301 dns-tcp-responses-sent-ipv6: 32679559