C100DBA MongoDB DBA认证考题讲解 mongodump command

C100DBA MongoDB DBA认证考题讲解 mongodump command


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Which of the following are true about the mongodump command ?

  1. Can backup data by connecting to a running mongos or mongod server
  2. Can backup data using only the data files for a MongoDB database
  3. Writes data in either BSON or JSON format


答案为 A


1、mongodump 导出数据使用的是BSON格式,而非JSON格式

2、 mongodump can read data from either mongod or mongos instances. mongodump 可以基于mongod/mongos读取数据





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