--- service: a.root-servers.net start-period: '2016-09-02T00:00:00Z' end-period: '2016-09-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4630722056 dns-udp-queries-received-ipv6: 477884530 dns-tcp-queries-received-ipv4: 115630408 dns-tcp-queries-received-ipv6: 6098893 dns-udp-responses-sent-ipv4: 4627874371 dns-udp-responses-sent-ipv6: 477787532 dns-tcp-responses-sent-ipv4: 115621488 dns-tcp-responses-sent-ipv6: 4366416