Free Access MongoDB.C100DBA.v2022-02-21.q41 Practice Test (Page 7)

Question 26

Which of the following commands will return all the posts with number of likes greater than 100 and less than
200, both inclusive?

A.db.posts.find({ likes : { $gt : 100 , $lte : 200 } } );

B.db.posts.find({ likes : { $gt : 100, $lt : 200 > > );

C.db.posts.find({ likes : { $gte : 100, $lt : 200 } } );

D.db.posts.find({ likes : { $gte : 100 , $lte : 200 } } );

Question 27

Which of the following is a valid insert statement in mongodb? Select all valid.

A.db.test.insert({x:2,y:"apple"})

B.db.test.insert({x:2},{y:"apple"})

C.db.test.insert{"x":2, "y":"apple"})

D.db.test.push({x:2,y:"apple"})

Question 28

Which of the tags in a replica set configuration specify the operations to be read from the node with the least network latency?

A.netLatency

B.primaryPreferred

C.nearest

D.secondaryPreferred

Question 29

Which of the following is correct about MongoDB?

A.MongoDB uses JSON format to represent documents

B.MongoDB supports some of the SQL functions

C.MongoDB supports geospatial indexes

D.MongoDB supports collection joins

Question 30

The MongoDB explain() method does not support which of the following verbosity mode:

A.queryPlanner

B.executionStats

C.allPlansExecution

D.customExecutionStats

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