--- service: a.root-servers.net start-period: '2016-10-17T00:00:00Z' end-period: '2016-10-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4260337684 dns-udp-queries-received-ipv6: 385135425 dns-tcp-queries-received-ipv4: 137178315 dns-tcp-queries-received-ipv6: 7120014 dns-udp-responses-sent-ipv4: 4241762458 dns-udp-responses-sent-ipv6: 384248681 dns-tcp-responses-sent-ipv4: 137430661 dns-tcp-responses-sent-ipv6: 7040908