FUNDAMENTALS OF COMPUTER

DATABASE FUNDAMENTALS

BASICS OF BIG DATA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which database type provides horizontal scaling for OLTP databases?
A
Relational
B
NoSQL
C
Data Warehouse
D
None of the above
Explanation: 

Detailed explanation-1: -Types of NoSQL Databases. Key-value: Key-value databases are highly partitionable and allow horizontal scaling at scales that other types of databases cannot achieve.

Detailed explanation-2: -NoSQL describes a horizontally scalable, non-relational database with built-in replication support. Applications interact with the database through a simple API, and the data is stored in a schema-free repository as large files or data blocks.

Detailed explanation-3: -NoSQL databases are scalable horizontally, meaning that they use multiple nodes in a cluster to handle increased workloads. This allows data architects to simply scale them by supplementing clusters with additional servers.

Detailed explanation-4: -What is Horizontal Scaling? Horizontal scaling, also known as scale-out, refers to bringing on additional nodes to share the load. This is difficult with relational databases due to the difficulty in spreading out related data across nodes.

Detailed explanation-5: -The type of scaling supported by NoSQL is Horizontal.

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