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In MongoDB _________ operations modify the data of a single collection

Correct Answer : A

____________ does not dump the content of the local database

Correct Answer : B

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

Correct Answer : A

Production sharded clusters have exactly ______ config servers

Correct Answer : C

The mongo shell and the drivers provide several cursor methods that call on the cursor returned by the _______ method to modify its behavior

Correct Answer : B

Point out the correct statement

Correct Answer : A

___________ is the primary daemon process for the MongoDB system

Correct Answer : B

Which of the following provides similar functionality to join?

Correct Answer : C

Which index is used to index the content stored in arrays?

Correct Answer : A

What is the minimum sensible number of voting nodes to a replica set?

Correct Answer : B

Which of the following method returns one document?

Correct Answer : A

The mongo shell loads and parses the ___________ file on startup.

Correct Answer : C

__________ is a diagnostic tool for inspecting BSON files

Correct Answer : B

A query may include a ___________ that specifies the fields from the matching documents to return

Correct Answer : B

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

Correct Answer : C

_____________ is used to control mongod commits in the journal

Correct Answer : C

__________ returns the JavaScript representation in the form of a string literal

Correct Answer : B

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 functionality is used for aggregation framework?

Correct Answer : B

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

Correct Answer : C

The ________ message is used to update a document in a collection

Correct Answer : B

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

In aggregation pipeline, the _______ pipeline stage provides access to MongoDB queries

Correct Answer : B

A query _______ consists of a combination of query, sort, and projection specifications

Correct Answer : B

Which of the following language is MongoDB written in?

Correct Answer : D

Point out the correct statement

Correct Answer : A

Point out the wrong statement

Correct Answer : C

Which of the following method is used to query documents in collections?

Correct Answer : A

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

Correct Answer : C

Which of the following operation is used to switch to new database mydb?

Correct Answer : C