MongoDB Interview Questions: Advanced-Level MCQs

MongoDB Advanced Interview Quiz

This quiz dives into advanced MongoDB concepts, from replication and sharding to performance tuning and data security. Test your knowledge of MongoDB's high availability, scalability, and optimization features to see how well you understand the depth of MongoDB's powerful database capabilities. Good luck!

1 / 20

MongoDB transactions across multiple shards are fully ACID-compliant. True or False?

True

False

2 / 20

In a MongoDB replica set, what does setting a node’s priority to 0 accomplish?

Prevents it from becoming the primary

Forces it to sync faster

Prevents it from being readable

Prioritizes it for read operations

3 / 20

You can control the MongoDB Performance by the following except;

Locking the Performance

Following the aggregate functions of MongoDB

Identifying the number of connections

Full-time Diagnostic Data Capture

4 / 20

With hash-based partitioning, two documents with _____ shard key values are unlikely to be part of the same chunk.

partially close

open

all of the above

5 / 20

MongoDB divides the shard key values into replica sets. True or False?

True

False

6 / 20

If write operations in MongoDB suddenly become slower, what could be a primary reason?

Inefficient write concern settings

Database schema changes

Limited disk space

High server load

7 / 20

How do you manage asynchronous operations in MongoDB when using Node.js?

Using the async/await syntax

Using XMLHTTPRequest

Using callbacks

Using synchronous operations

8 / 20

What is the purpose of the MongoDB Node.js driver?

To convert MongoDB data to Node.js formats

To optimize Node.js performance

To provide additional security features for Node.js applications

To facilitate communication between a Node.js application and MongoDB

9 / 20

MongoDB stores the documents in what are called _____________

rows

tables

collections

all of the above

10 / 20

A _________ key is either an indexed field or an indexed compound field that exists in every document in the collection.

shard

cluster

partition

all of the above

11 / 20

____________ are operations that process data records and return computed results.

Aggregations

ReplicaAgg

SumCalculation

None of the above

12 / 20

Which of these is not a built-in role that grants permissions for database users in MongoDB?

write

read

dbOwner

readWrite

13 / 20

ACID refers to Atomicity, Consistency, Isolation, and Durability. True or False?

True

False

14 / 20

What is Mongoose in the context of Node.js and MongoDB?

A Node.js framework

A data validation library

An ORM for MongoDB in Node.js

A MongoDB GUI tool

15 / 20

To shard a document, one needs to select a shard key. True or False?

True

False

16 / 20

The MongoDB changelog is primarily used for:

Logging changes to shard configurations and migrations

Monitoring data insertions

Documenting replica set election history

Tracking changes to the MongoDB binaries

17 / 20

MongoDB Queries can return specific fields of documents which also include user-defined __________ functions.

Javascript

C++

All of the mentioned

18 / 20

In MongoDB, which index type is most efficient for geospatial queries?

Geospatial Index

Sparse Index

Text Index

Compound Index

19 / 20

The MongoDB $merge aggregation stage is used to:

Merge documents within the same collection

Combine collections into a single output

Delete duplicate data

Export documents to another collection

20 / 20

Which of the following is not a data type supported by MongoDB?

String

Date

Code

Your score is

The average score is 0%

MongoDB is a database that stores information in a flexible way. Unlike traditional databases that use tables, MongoDB uses collections of documents, making it easier to work with changing or unstructured data.

These MongoDB interview questions are designed for advanced or experienced MongoDB professionals possessing a good understanding of MongoDB.

These interview questions are also for those who need to demonstrate their ability to manage complex, large-scale deployments, optimize performance, and ensure high availability and security.

Good luck!