CMSC 137- Application Layer

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","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":28,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625241,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:11:01","updated_at":"2018-11-24 09:13:31","questionName":"A primary server loads all information from the ________; the secondary server loads all information from\r\nthe ___________.\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":18,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625246,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:12:54","updated_at":"2018-11-24 09:13:31","questionName":"in Recursive resolution, the resolver (client) expects the server to supply the final answer\r\ntrue or false?","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":22,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625245,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:12:28","updated_at":"2018-11-24 09:13:31","questionName":"Mapping a name to an address or an address to a name is called _______________.\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":21,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625248,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:14:21","updated_at":"2018-11-24 09:13:31","questionName":"in ___________, the resolver (client) repeats the query until the server is an authority for the name. If the server is the authority for the name, it sends the answer.\r\nIf it is not, it returns the IP address of the server that it thinks can resolve the query.\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":23,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625259,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:20:57","updated_at":"2018-11-24 09:13:31","questionName":"The ________ are used in the question section of the query and response messages. 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In the Internet, the domain name space (tree) is divided into three different sections: _____________________________\r\n","questionTimeSeconds":"0","questionTimeMinutes":"4","questionImagePath":null,"position":20,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625243,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:11:18","updated_at":"2018-11-24 09:13:31","questionName":"When the secondary downloads information from the primary, it is called __________.\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":19,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625237,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:09:04","updated_at":"2018-11-24 09:13:31","questionName":"A __________ is a server that stores a file about the zone for which it is an authority.\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":15,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625240,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:10:15","updated_at":"2018-11-24 09:13:31","questionName":"A _____________ is a server that transfers the complete information about a zone from another server (primary or secondary) and stores the file on its local disk.\r\n(for redundancy of data)\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":17,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625238,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:09:29","updated_at":"2018-11-24 09:13:31","questionName":"what is?\r\nIt is responsible for creating,maintaining, and updating the zone file.\r\nIt stores the zone file on a local disk.\r\n","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":16,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":625264,"quiz_id":"30656","answer_id":null,"answerType_id":"4","created_at":"2018-11-24 08:24:35","updated_at":"2018-11-24 09:13:31","questionName":"A registrar first verifies that the requested domain name is unique and then enters it into the DNS database. A fee is charged.\r\ntrue or false?","questionTimeSeconds":"0","questionTimeMinutes":"3","questionImagePath":null,"position":29,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null}]
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按卡将其翻转。

The ________ consists of a header and question records; the ___________consists of a header, question records, answer records, authoritative records, and additional records.

query message response message





你做对了吗?





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