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An index cannot cover a query on a _______ collection when run against a mongos if the index does not contain the shard key.

Correct Answer : B

MongoDB supports query joins between collections.

Correct Answer : B

How to create a database in MongoDB?

Correct Answer : A

Point out the correct statement

Correct Answer : A

You can only use jsMode for result sets with fewer than 500,000 distinct key arguments to the mapper’s _______ function

Correct Answer : A

Which of the following language is MongoDB written in?

Correct Answer : D

Here are _________ types of read requests that a coordinator can send to a replica

Correct Answer : A

_______ groups documents by some specified expression and outputs to the next stage a document for each distinct grouping

Correct Answer : B

A collection and a document in MongoDB is equivalent to which of the SQL concepts respectively?

Correct Answer : A

__________ is a diagnostic tool for inspecting BSON files

Correct Answer : B

Which of the following will display details of sName "Sumit"?

Correct Answer : A

Which of the following functionality is used for aggregation framework?

Correct Answer : B

To describe the message structure, a ________ like struct is used

Correct Answer : C

NoSQL databases is used mainly for handling large volumes of ______________ data.

Correct Answer : A

____________ works similar to HAVING clause in SQL

Correct Answer : C

Which of the following is not part of _id?

Correct Answer : D

As per the aggregation pipeline optimization concepts, if you have a $sort followed by a $match:

Correct Answer : A

You have two text fields in your document and you’d like both to be quickly searchable. What should you do?

Correct Answer : A

MongoDB has been adopted as ________ software by a number of major websites and services

Correct Answer : B

Which of the following preference determines how the client direct read operations to the set?

Correct Answer : A

_id is a ________ bytes hexadecimal number which assures the uniqueness of every document

Correct Answer : C

Which of the following is used to start server in MongoDB?

Correct Answer : A

How many byte counter in BSON is starting with a random value ?

Correct Answer : B

Point out the wrong statement

Correct Answer : A

Which of the following is not a NoSQL database?

Correct Answer : A

Production sharded clusters have exactly ______ config servers

Correct Answer : C

MongoDB is a _________ database that provides high performance, high availability, and easy scalability

Correct Answer : C

The output of the reduce function may pass through a ______ function to further condense or process the results of the aggregation

Correct Answer : A

After starting the mongo shell, your session will use the ________ database by default

Correct Answer : C

With a receipt acknowledged write concern, the _________confirms that it received the write operation and applied the change to the in-memory view of data

Correct Answer : A