NoSQL endka 100% Correct

NoSQL endka 100% Correct


How to insert Many Documents

a.there is no right answer

b.db. <Collection name>.insertOne()

c.db. <Collection name>.insertOne(<object>)

d.all answers are correct

e.db. <Collection name>.insert(<Array of objects>) - ANSWER e.db. <Collection
name>.insert(<Array of objects>)



How to skip certain number of the documents

a.there is no right answer

b.cursor.limit(<number>)

c.cursor.sort({<field1>: 1})

d.cursor.count()

e.cursor.skip(<number>) - ANSWER e.cursor.skip(<number>)



How to create new Collection?

a.db. <database name>.drop()

b.there is no right answer

c.db.dropDatabase()

d.Use <database name>

e.db.createCollection("<Collection name>") - ANSWER
e.db.createCollection("<Collection name>")



How to Returns One Document in Extended JSON format

, a.all answers are correct

b.db. <Collection name>.insertMany()

c.there is no right answer

d.db. <Collection name>.insertOne(<object>)

e.db. <Collection name>.findOne(<query>,<fields> ) - ANSWER e.db. <Collection
name>.findOne(<query>,<fields> )



How to List all Collections inside active Database

a.show collections

b.db.dropDatabase()

c.db. <database name>.drop()

d.db.createCollection("<Collection name>")

e.Use <database name> - ANSWER a.show collections



Which one is not Comparison Operators?

a.$exists

b.$ne

c.$gte

d.$gt - ANSWER a.$exists



Which one is an Update Operators

a.all answers are correct

b.$mul

c.$addToSet

d.$rename

e.$pop - ANSWER a.all answers are correct