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What is Cassandra? 

Cassandra or Apache Cassandra is a distributed database system developed by Apache, which is highly scalable to manage very large amounts of data across many servers. It presents developers with high availability and no single point of failure.

Apache Cassandra is a very powerful and open-source distributed database system designed for high performance to manage and handle huge volumes of database records that are spread across several commodity servers. It can be quickly and easily scaled to match a sudden increase in the demand of data by deploying and using multi-node Cassandra data clusters that help to meet high availability requirements. Cassandra is one of the most efficient NoSQL databases that are available today.

A NoSQL database is a kind of data processing engine that is exclusively deployed for working with data that can be stored in a tabular data format and therefore does not reach the requirements of relational databases. Some of the notable features of NoSQL databases are that you can use them to handle very large amounts of data, they also have a very simple and easy to understand API, and can be easily replicated, they are essentially schema-free, and are more or less constant.

NoSQL database technologies are known for being horizontally scalable, remarkably simple, and they are used for providing extremely precise control over data availability. Data structures that are used in a NoSQL database are very different from those that are used in a relational database system. Due to this, it increases the speed of the operations that are carried out in NoSQL databases.

Features of Cassandra

There are lots of features of Cassandra, and some of them are:

1. High Scalability: Cassandra is highly scalable, and this helps you to add more hardware to join more customers and more data as per your organizational requirement.

2. Rigid Architecture: Cassandra does not have a single point of failure and it is repeatedly available for developing business-critical applications that cannot have any failure, for example, developing bank software.

3. Fast Linear-scale Performance: Cassandra is scalable linearly. It improves and increases your throughput because it helps you to further increase the number of nodes in the cluster. Therefore it ensures for a very quick response time.

4. Fault-tolerant: Cassandra is a fault-tolerant software. For example, in a situation where there are 4 nodes in a cluster, in which each node has a separate copy of the same data. If one node is no longer working then the other three nodes can be served as per the application request.

5. Flexible Data Storage: Cassandra has supports for all the data formats that are possible like structured, semi-structured, and unstructured data formats. It helps you to make changes to your data structures to suit your needs.

6. Easy Data Distribution: Data distribution in Cassandra is made very easy because it offers you the flexibility to share and distribute data wherever you need them by replicating the data across several data centers.

7. Transaction Support: Cassandra has supports for various properties like Atomicity, Consistency, Isolation, and Durability mostly abbreviated as "ACID".

8. Fast writes: Cassandra was designed to be run on cheap commodity hardware. It carries out extremely fast data writes and can be used to store hundreds of terabytes of data, without forfeiting the read efficiency.

Benefits of Cassandra

There are lots of benefits of Cassandra, some of them are:

1. Cassandra has an elastic Scalability.

2. Cassandra is an open-source and free software.

3. Cassandra has a Peer to Peer Architecture.

4. Cassandra has high fault tolerance.

5. Cassandra has great possibilities for analytics.

Why Study Cassandra

1. With Cassandra, you have the full power of elastic scalability. This means that with Cassandra cluster, you can scale your database up and down as you please without any downtime or pause occurring to the applications on it.

2. Another benefit of learning about Apache Cassandra is that it is an open-source project, which means that it is and will always be free to use in your business.

3. Cassandra has a huge community and a large number of organizations are making use of it, this means that you will not be learning about something that will be outdated soon

4. With Apache Cassandra, you have a number of great analytics features that let you get valuable insights into the performance of your database.

5. A major point to consider is that Apache Casandra has a vast number of job opportunities available. since the topic of a P2P open-source and distributed database has been a hot topic lately, you would find out that a large number of App development and data management companies are already switching to it which makes you a valuable asset to any organization.

6. Job opportunities and career advancement.

7. Increase your earning potential.

Cassandra Course Outline

Cassandra - Introduction

Cassandra - Architecture

Cassandra - Installation

Cassandra - Keyspace Operations

Cassandra - Create Keyspace

Cassandra - Alter Keyspace

Cassandra - Drop Keyspace

Cassandra - Table Operations

Cassandra - Create Table

Cassandra - Alter Table

Cassandra - Drop Table

Cassandra - Truncate Table

Cassandra - Create Index

Cassandra - Drop Index

Cassandra - Batch

Cassandra - CURD Operations

Cassandra - CQL Types

Cassandra - Video Lectures

Cassandra - Exams and Certification

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