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

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

True

False

2 / 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

3 / 20

What might cause an increase in the number of page faults in MongoDB?

Network bottlenecks

Insufficient memory

Inefficient indexes

High server load

4 / 20

The most basic pipeline stages provide __________ that operate like queries.

methods

stored procedure

filters

none of the above

5 / 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

6 / 20

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

Aggregations

ReplicaAgg

SumCalculation

None of the above

7 / 20

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

write

read

dbOwner

readWrite

8 / 20

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

String

Date

Code

9 / 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

10 / 20

Which of the following does not come under the basic shell operations on MongoDB?

Delete

Write

Update

Create

11 / 20

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

Javascript

C++

All of the mentioned

12 / 20

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

True

False

13 / 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

14 / 20

MongoDB also supports user-defined indexes on multiple fields called ____________

candidate

compound

composite

none of the above

15 / 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

16 / 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

17 / 20

MongoDB stores the documents in what are called _____________

rows

tables

collections

all of the above

18 / 20

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

Geospatial Index

Sparse Index

Text Index

Compound Index

19 / 20

In a sharded MongoDB cluster, the config servers are responsible for storing metadata about the cluster's shards and data distribution. True or False?

True

False

20 / 20

MongoDB indexes use a ___ data structure.

B-tree

Hash

Map

All of the above

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!