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MongoDB Multiple Choice Questions | MCQs | Quiz

MongoDB Interview Questions and Answers
Pratice MongoDB questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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•   MongoDB Basics
•   Big Data & MongoDB
•   NoSQL Databases
•   MongoDB Installation - 1
•   MongoDB Installation - 2
•   MongoDB Enterprise - 1
•   MongoDB Enterprise - 2
•   MongoDB Packages
•   MongoDB Getting Started-1
•   MongoDB Getting Started-2
•   Test Data Generation
•   CRUD Concepts
•   Read Operations - 1
•   Read Operations - 2
•   Write Operations - 1
•   Write Operations - 2
•   Analyze Query Performance
•   Data Modeling Basics
•   Data Modeling Concepts - 1
•   Data Modeling Concepts - 2
•   Data Model Patterns
•   Model Tree Structures
•   Model Data Operations
•   Model Monetary & Time
•   GridFS
•   BSON
•   ObjectId
•   MongoDB Documents - 1
•   MongoDB Documents - 2
•   MongoDB Administration
•   Operational Strategies
•   MongoDB Backup
•   MongoDB Monitoring
•   Database Configuration
•   MongoDB Maintenance
•   MongoDB Production
•   Data Management
•   Operational Segregation
•   Capped Collections
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•   Optimization Strategies - 1
•   Optimization Strategies - 2
•   Optimization Strategies - 3
•   System Collections
•   Database Profiler
•   Exit Codes & Statuses
•   Authentication
•   Authorization
•   Collection Access Control
•   Network Security
•   MongoDB API Interfaces
•   Auditing
•   Kerberos Authentication
•   Security Checklist
•   Access Control
•   User & Role Management
•   Aggregation
•   Aggregation Pipeline
•   Map-Reduce
•   Aggregation Operations
•   Aggregation Mechanics
•   Pipeline Optimization
•   Pipeline Limits
•   Pipeline & Sharded
•   Map-Reduce & Sharded
•   Pipeline Operators - 1
•   Pipeline Operators - 2
•   SQL - Aggregation Mapping
•   Aggregation Commands
•   MongoDB Indexes
•   Index Types - 1
•   Index Types - 2
•   Index Types - 3
•   Index Properties
•   Index Management
•   Geospatial Index
•   Text Search
•   Indexing Strategies
•   Indexing Methods
•   MongoDB Replication
•   Replica Set Members
•   Replica Architectures
•   Replica Set High Availability
•   Read & Write Semantics
•   Master Slave Replication
•   Replication Processes - 1
•   Replication Processes - 2
•   Replication Maintenance
•   Troubleshooting
•   Member Configuration
•   Sharding Introduction
•   Sharding Concepts
•   Cluster Architectures
•   Sharded Cluster Behavior
•   Sharding Mechanics
•   Cluster Deployment
•   ↓ Sharded Cluster ↓
•   Maintenance
•   Troubleshooting
•   Data Management - 1
•   Data Management - 2

Best Reference Books

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MongoDB Questions and Answers – NoSQL Databases

Posted on March 8, 2015 by Manish

This set of MongoDB Multiple Choice Questions & Answers (MCQs) focuses on “NoSQL Databases”.

1. Which of the following is not a NoSQL database ?
a) SQL Server
b) MongoDB
c) Cassandra
d) None of the mentioned
View Answer

Answer: a
Explanation: Microsoft SQL Server is a relational database management system developed by Microsoft.

2. Point out the correct statement :
a) Documents can contain many different key-value pairs, or key-array pairs, or even nested documents
b) MongoDB has official drivers for a variety of popular programming languages and development environments
c) When compared to relational databases, NoSQL databases are more scalable and provide superior performance
d) All of the mentioned
View Answer

Answer:
Explanation: There are also a large number of unofficial or community-supported drivers for other programming languages and frameworks.

3. Which of the following is a NoSQL Database Type ?
a) SQL
b) Document databases
c) JSON
d) All of the mentioned
View Answer

Answer: b
Explanation: Document databases pair each key with a complex data structure known as a document.

4. Which of the following is a wide-column store ?
a) Cassandra
b) Riak
c) MongoDB
d) Redis
View Answer

Answer: a
Explanation: Wide-column stores such as Cassandra and HBase are optimized for queries over large datasets, and store columns of data together, instead of rows.

5. Point out the wrong statement :
a) Non Relational databases require that schemas be defined before you can add data
b) NoSQL databases are built to allow the insertion of data without a predefined schema
c) NewSQL databases are built to allow the insertion of data without a predefined schema
d) All of the mentioned
View Answer

Answer: a
Explanation: There’s also no way, using a relational database, to effectively address data that’s completely unstructured or unknown in advance.

6. “Sharding” a database across many server instances can be achieved with :
a) LAN
b) SAN
c) MAN
d) All of the mentioned
View Answer

Answer: b
Explanation: “Sharding” a database across many server instances can be achieved with SQL databases, but usually is accomplished through SANs and other complex arrangements for making hardware act as a single server.

7. Most NoSQL databases support automatic __________, meaning that you get high availability and disaster recovery
a) processing
b) scalability
c) replication
d) All of the mentioned
View Answer

Answer: c
Explanation: The storage environment is essentially virtualized from the developer’s perspective.

8. Which of the following are the simplest NoSQL databases ?
a) Key-value
b) Wide-column
c) Document
d) All of the mentioned
View Answer

Answer: a
Explanation: Every single item in the database is stored as an attribute name (or “key”), together with its value in Key-value stores.

9. ________ stores are used to store information about networks, such as social connections.
a) Key-value
b) Wide-column
c) Document
d) Graph
View Answer

Answer: d
Explanation: Graph stores include Neo4J and HyperGraphDB.

10. NoSQL databases is used mainly for handling large volumes of ______________ data.
a) unstructured
b) structured
c) semi-structured
d) all of the mentioned
View Answer

Answer: a
Explanation: MongoDB is an a typical choice for unstructured data storage.

Sanfoundry Global Education & Learning Series – MongoDB.

Here’s the list of Best Reference Books in MongoDB.

To practice all areas of MongoDB, Here is complete set of 1000+ Multiple Choice Questions and Answers.
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