Learn about Apache Cassandra and its key scalable and reliable data management features.

cassandra.tar.gz

Apache Cassandra is an open-source, distributed NoSQL database recognized for its scalability, reliability, and continuous availability. The course explores the core concepts that drive these features, including distributed architecture, data modeling, CQL, table design, data types, tunable consistency, and the read/write path. 

Lessons combine theoretical insights with hands-on exercises, allowing you to execute CQL queries directly in your browser and view real-time results with no setup required. Additionally, each module concludes with a quiz to test your understanding of the material. 

By the end of this course, you’ll be equipped with the skills needed to use Cassandra for high-performance data management.

Introduction to Apache Cassandra

**(Fill in the blank.)** The Cassandra node handling a read/write request is called a ________.

(Fill in the blank.) The Cassandra node handling a read/write request is called a ________.

To populate MemTable when a crashed node restarts.

What is the purpose of commit log?

After the commit log and Memtable are written.

After the commit log and SSTables are written.

After the Memtable & SSTables are written.

When is a write acknowledged to the client?

When is a write acknowledged to the client?

It merges multiple SSTables to form a new SSTable.

It merges multiple MemTables to form a new MemTable.

It merges multiple MemTables to form a new SSTable.

What does the compaction process do?

**(Fill in the blank.)** The partition summary is the summary of ________ file.

(Fill in the blank.) The partition summary is the summary of ________ file.

**(Fill in the blank.)** SSTable component ________ holds frequently accessed partition keys & their corresponding entry from partition index file.


(Fill in the blank.) SSTable component ________ holds frequently accessed partition keys &amp; their corresponding entry from partition index file.

**(Select all that apply.)** If the partition key to be read is found in the key cache, which SSTable structures are skipped/bypassed in the read path?

(Select all that apply.) If the partition key to be read is found in the key cache, which SSTable structures are skipped/bypassed in the read path?

**(Select all that apply.)**
How does the bloom filter resolve whether a partition exists in an SSTable?


(Select all that apply.)
How does the bloom filter resolve whether a partition exists in an SSTable?

**(Fill in the blank.)** Digest requests are sent to a number of replicas depending on ________.

(Fill in the blank.) Digest requests are sent to a number of replicas depending on ________.

replicas involved in the read request process

**(Fill in the blank.)** The read repair makes ________ consistent with latest data.

(Fill in the blank.) The read repair makes ________ consistent with latest data.

Test your understanding of Cassandra's read and write path.

Getting Started

Apache Cassandra Overview

Apache Cassandra Architecture

Apache Cassandra Data Modeling

Apache Cassandra Table

Apache Cassandra Data Types

Tunable Consistency

Apache Cassandra Read and Write Path

Wrap Up

Quiz: Apache Cassandra Read and Write Path