--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7224185740 dns-udp-queries-received-ipv6: 1062525447 dns-tcp-queries-received-ipv4: 273632170 dns-tcp-queries-received-ipv6: 74582844 dns-udp-responses-sent-ipv4: 7017211406 dns-udp-responses-sent-ipv6: 1057646871 dns-tcp-responses-sent-ipv4: 258293881 dns-tcp-responses-sent-ipv6: 74622046