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NoSQL MCQ

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17th Apr, 2021
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NoSQL MCQ

Following are mostly asked Nosql MCQ test that are designed for professionals like you to crack you interviews. You can take this Nosql online test before appearing to you real interview. This Nosql quiz there are around 30+ multiple choice questions on Nosql with four options.

1) “NoSQL” stands for “__”

A. non SQL

B. native SQL
C. note SQL
D. All of the above

2) NoSQL data models allow related data to be nested within a single data structure.

A. True

B. False

3) Which of the following is not a NoSQL database?

A. SQL Server

B. MongoDB
C. Cassandra
D. None of the above

4) What is the aim of nosql?

A. NoSQL databases allow storing non-structured data.
B. NoSQL provides an alternative to SQL databases to store textual
C. NoSQL is a new data format to store large datasets.

D. NoSQL is not suitable for storing structured data.

5) Nosql databases does not prohibits the use of sql.

A. True

B. False

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6) ___ stores are used to store information about networks, such as social connections.

A. Key-value
B. Wide-column
C. Document
D. Graph

7) What is the core principle of nosql?

A. High availability

B. Low availability
C. both High & Low availability
D. None of above

8) Which of the following statement is true?

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 above

9) What are the advantages of NoSQL?

A. It supports semi-structured data and volatile data.
B. It does not have schema.
C. Read/Write throughput is very high.
D. Horizontal scalability can be achieved easily.
E. All of the above

10) ACID Properties refers to the ___.

A. Atomicity Consistency Isolation Durability

B. Active Consistency Isolation Durability
C. Atomicity Control Isolation Durability
D. Atomicity Consistency Idea Durability

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11) ___ is a online NoSQL developed by Cloudera.

A. Hbase

B. HCatalog
C. Imphala
D. Oozie

12) Which of the following is a reason to use an SQL database?

A. It's ACID-compliant.

B. It can easily store unstructured data. It's ACID-compliant.
C. It can enable development in the cloud.
D. None of above

13) ___ can be used for batch processing of data and aggregation operations.

A. Hive
B. Oozie
C. MapReduce

D. None of the above

14) A NoSQL database includes __ of design, simpler horizontal scaling to clusters of machines and finer control over availability.

A. simplicity

B. difficulty
C. complexity
D. All of the above

15) _______ is not a strong feature for NoSQL databases.

A. Scalability
B. Relational data

C. Both A and B
D. None of the above

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16) _______ are the types of NoSQL databases.

A. Graph & Column-oriented databases.
B. Document databases.
C. Key-value stores
D. All of the above

17) MongoDB is a NoSQL database. True/False?

A. True

B. False

18) _______ represent column in NoSQL.

A. Database
B. Field

C. Document
D. Collection

19) ______ is not an online NoSQL developed by Cloudera.

A. HCatalog
B. Oozie
C. Imphala
D. None of the above

20) MongoDB written in ________.

A. C
B. C++
C. JavaScript
D. All of the above

21) Cassandra is a wide-column store. True/False?

A. True

B. False

22) NoSQL was released in the year ______.

A. 2000
B. 1998

C. 1997
D. 1999

23) Instead of Primary Key MongoDB uses _______.

A. Mongo key_id
B. Mongo_id
C. Default key _id

D. None of the above

24) NoSQL was created by ______.

A. Guido van Rossum
B. Carlo Strozzi

C. James Gosling
D. None of the above

25) Advantages of NoSQL are ____.

A. It supports query language.
B. It provides fast performance.
C. It provides horizontal scalability.
D. All of the above

26) A NoSQL database can manage information using _________ models.

A. Key-value store
B. Document-based
C. Column-based or Graph-based
D. All of the above

27) Redis, a powerful in-memory key value store used for session caching, message queues, and other specific applications is a NoSql database.

A. True

B. False

28) NoSQL was created to manage the scale and agility challenges that face modern applications, but the suitability of a database depends on the problem it must solve.

A. True

B. False

29) The trends creating new technical challenges that NoSQL DBs can address _______.

A. More customers are going online
B. The internet is connecting everything
C. Both A and B

D. None of the above

30) NoSQL database fully supports agile development and does not statically define how the data must be modeled.

A. True

B. False

31) Why NoSQL Databases are more preferable?

A. Flexibility
B. Faster Development
C. Both A and B

D. None of the above

32) What are NoSQL database?

A. NoSQL databases are non tabular, and store data differently than relational tables.

B. NoSQL databases are non tabular, and store data similarly than relational tables.
C. Both A and B
D. None of the above

33) What are the basic characteristics of a NoSQL database?

A. Multi-Model
B. Easily Scalable
C. Flexible
D. All of the above

34) Is Apache Cassandra a NoSQL Database?

A. True

B. False

35) How does one extract data from a NoSQL database if SQL?

A. run queries and output the data you need.

B. By writing the queries.
C. Both A and B
D. None of the above

36) Which of the following is not a reason NoSQL has become a popular solution for some organizations?

A. Better scalability
B. Faster access to data than RDBMS
C. Improved ability to keep data consistent

D. All of the above

37) NoSQL was designed with security in mind, so developers or security teams don't need to worry about implementing a security layer.

A. True
B. False

38) NoSQL vs SQL, State True/False? NoSQL prohibits structured query language (SQL).

A. True
B. False

39) It is best to use a NoSQL database ________.

A. When providing confidentiality, integrity and availability is crucial
B. When the data is predictable
C. When the retrieval speed of data is not critical
D. When the retrieval of large quantities of data is needed

40) Which company developed NoSQL database Apache Cassandra?

A. Microsoft
B. Twitter
C. Google
D. Facebook

Nosql Online Test Questions (Nosql FAQs)

1) What is Nosql?

NoSQL database technology is a database type that does not store data in rows and columns used by relational databases instead, it stores information in JSON documents.

2) Is mongodb Nosql database?

Yes, MongoDB is the most popular NoSQL database.

3) What is data replication in Nosql?

Data Replication is the method of replicating data i.e. storing data in more than one place. It is used to improve the availability of data.

4) What is Denormalization?

Denormalization is just the opposite of what we do in normalization i.e. we add redundant data in an existing normalized table by adding extra attributes from new tables, or by creating instances of existing tables.

5) What is Flume?

Flume is an open-source source tool which is consists of simple and flexible architecture used for collecting, aggregating, and moving large amounts of log data.

6) What is CAP theorem?

CAP theorem, also known as Brewer's theorem states that if a partition occurs between two nodes then the distributed database system has to make a tradeoff between Consistency and Availability.

7) What is a graph database?

A graph database is a type of NoSQL database which is built to store and navigate relationships. Graph database stores data entities at nodes, stores relationships between entities at edges.

8) What is Polyglot Persistence in NoSQL?

Polyglot Persistence is just a hybrid approach that is used to store data at multiple databases based on their requirements and uses of their respective applications.

9) What is Cassandra?

Cassandra is a distributed database system that is highly scalable and available. It is used to handle the vast amount of data stored at multiple data centers and the cloud without compromising its performance.