What is the equivalent command in MongoDB for the following SQL query?
SELECT * FROM posts WHERE author like "%john%"
Which operations add new documents to a collection?
Which of the following index would be optimum for the query?
Select all valid. db.test.find( { a : 5, c : 2 })
In what format does mongodump creates backup files?
Which is the default mode in which the explain() command runs?
What is the maximum size of Index Key Limit and Number of Indexes per collection?
Consider the following documents:
You perform the following query;
How many documents will be updated by the query?
The following aggregation option is used to specify the specific fields that needs to be passed to the next stage of the aggregation pipeline:
The MongoDB explain() method does not support which of the following verbosity mode:
Which of the following is supported by MongoDB?
