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 ?
- Can backup data by connecting to a running mongos or mongod server
- Can backup data using only the data files for a MongoDB database
- Writes data in either BSON or JSON format
此为多选题
答案为 A
参考地址：https://docs.mongodb.org/manual/reference/program/mongodump/
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
