Cassandra Interview Questions


Here are a few Cassandra Interview Questions for you!


Trending Interview Questions Show/hide topics
Agile Interview Questions
Android Interview Questions
AngularJS Interview Questions
Appium Interview Questions
Artificial Intelligence Interview Questions
Automation Testing Interview Questions
AWS Interview Questions
Azure Interview Questions
Big Data Interview Questions
Bootstrap Interview Questions
C Language Definition
C Language Interview Questions
Cassandra Interview Questions
Computer Science Interview Questions
Core Java Interview Questions
C++ Interview Questions
C# Interview Questions
CSS Interview Questions
Current Affairs Questions
Data Interpretation Interview Questions
Data Structures Interview Questions
Database Concepts Interview Questions
Database Interview Questions
DB2 Interview Questions
Design Patterns Interview Questions
DevOps Interview Questions
Direct-Indirect Speech Interview Questions
Dot Net Framework Interview Questions
EJB Interview Questions
Entity Framework Interview Questions
Exception Handling Interview Questions
Garbage Collection Interview Questions
General Awareness Interview Questions
General Knowledge Questions
Geography Questions
Hadoop Interview Questions
HCF-LCM Questions
Hibernate Interview Questions
History Questions
Hive Interview Questions
HTML Interview Questions
Indian Constitution Questions
iOS Interview Questions
J2EE Interview Questions
Java Basic Interview Questions
Java Web Service Interview Questions
Javascript Interview Questions
JDBC Interview Questions
Jenkins Interview Questions
Jmeter Interview Questions
JMS Interview Questions
Jquery Interview Questions
JSON Interview Questions
JSP Interview Questions
Kafka Interview Questions
Linux Interview Questions
Load Runner Interview Questions
Logical Reasoning Questions
Manual Testing Interview Questions
Mensuration Questions
MongoDB Interview Questions
Multithreading Interview Questions
MySQL Interview Questions
Networking Interview Questions
Node JS Interview Questions
NoSQL Interview Questions
Number Series Questions
One Word Substitution Questions
OOPS Interview Questions
Operating System Interview Questions
Oracle Interview Questions
Performance Testing Interview Questions
Permutation-Combination Questions
Phrase Replacement Questions
PostgreSQL Interview Questions
Project Management Interview Questions
Python Interview Questions
QTP Interview Questions
Quantitative Aptitude Questions
React Native Interview Questions
ReactJS Interview Questions
REST Interview Questions
Scala Interview Questions
Selenium Interview Questions
Servlet Interview Questions
Spark Interview Questions
Spring Interview Questions
SQL Interview Questions
SQL Query Interview Questions
Struts Interview Questions
Testing Interview Questions
Theory Of Computation Interview Questions
UI - Frameworks Interview Questions
UiPath Interview Questions
UNIX Interview Questions
Version Control Interview Questions
WCF Interview Questions
Web Services Interview Questions
World History Questions
WPF Interview Questions
XML Interview Questions




Download more High Quality Cassandra Interview Questions!


Some useful information that will help you brush up on Cassandra Interview Questions

What is Cassandra ?

Apache Cassandra is a highly scalable distributed database which allows you to store and manage high structured data across multiple commodity servers without any failure.

NoSQL Database

A NoSQL database is a database that does not store data in tabular relations used in relational databases. These databases are schema-free, support easy replication, have simple API, and can easily handle large amount of data.

 The main objective of a NoSQL database are:

   - Simplicity of design

   - Finer control

   - Horizontal scaling

NoSql databases uses different data structures as compared to relational databases. It makes some operations faster in NoSQL. This databases are very fast and can be accessed easily.

Features of Cassandra

 Cassandra has become much popular because of its amazing technical features. Lets checkout some of the features of Cassandra:

Flexible data storage - Cassandra accommodates all available data formats including structured, semi-structured, and unstructured data. It can accommodate changes dynamically to your data structures as per your need.

Elastic scalability - Cassandra is highly scalable because it allows you to add more hardware to serve more customers and more data on demand.

Always on architecture - Cassandra has zero failure and it is continuously available for business-critical applications that must not face any failure.bbbbbbbb

Linear-scale performance - Cassandra is linearly scalable, it enhances your throughput as you increase the number of nodes in the cluster. Therefore it maintains a quick response time.

Transaction support - Cassandra supports properties like Atomicity, Consistency, Isolation, and Durability.

Data distribution - Cassandra provides the flexibility to distribute data anywhere by replicating data across multiple data centers.

 Architecture of Cassandra

 Some of the important components of the Cassandra architecture are as follows:

   Cluster – it is a complete set of multiple data centers on which entire data is stored for processing in the database

   Data center – a set of related nodes which are grouped in a data center

   Node – the specific place where the data resides on the cluster is called the node

   Mem-table – it is a data structure that resides in the memory to write after the data is written to the mem-table. There can be multiple mem-tables even for single-column family data

   SSTable – when the mem-table reaches its threshold value then data is moved into disk file called the SSTable

   Bloom filter – the bloom filter is an algorithm that let you know whether an element is a member of a set or not. These bloom filters are accessed after each query executed.

Cassandra column-oriented approach for data storage makes it easy to store data where each row in a column can contain varied number of columns and there is no need for the column names to match. Because of the log structured storage engine of Cassandra it is possible to deploy high speed write operations which is most suited for storing and analyzing data.

Due to its inherent persistent cache of data, Cassandra can be easily deployed for storing Key-value data that needs to have high availability.

 Since most of the Big Data available now a days is in the unstructured format it makes perfect sense to integrate the NoSQL database Cassandra for Hadoop applications. This is another reason why Cassandra has seen huge deployment due to its seamless integration with the Hadoop framework. It is possible to deploy MapReduce job for read and write operations to the Cassandra database.

Top Interview questions for Apache Cassandra:

1) What is Apache Cassandra?

2) What is NoSQL?

3) Cassandra is written in which language?

4) How many types of NoSQL databases are there?

5) What is the relationship between Apache Hadoop, HBase, Hive and Cassandra?

6) What is SSTable?

7) How Cassandra stores data?

8) Define Mem-table in Cassandra?

9) What are “Seed Nodes” in Cassandra?

10) Explain the Cassandra Data Model?

11) What is Cassandra- CQL collections?

12) What do you understand by Bloom filter in Cassandra?

13) What do you understand by Column Family?

14) What do you understand by CQL?

15) What is the use of “cqlsh –version” command?

16) Do you have any experience in virtual machine automation?

17) What are the collection data types provided by CQL?

18) Which command is used to start the cqlsh prompt?

19) What is the use of “void close()” method?

20) What is cqlsh?

21) What does JMX stands for?

22) What do you understand by Thrift?

23) What is Zero Consistency?

24) What are secondary indexes?

25) What ports does Cassandra use?

26) What do you understand by High availability?

27) When to use secondary indexes?

28) When to avoid secondary indexes

29) When should you not use Cassandra?

30) Define Memtable?

Conclusion: - Apache Cassandra NoSQL tool can easily take your career to the next level. Cassandra is really a powerful tool that has some unique features making it the one of the best NoSQL tools to integrate into Hadoop.

Some of the many Cassandra Interview Questions listed below will help you get an idea about what questions gets asked in such jobs related to Software Engineering & Tech. Get through the Cassandra Interview bar with our selected Cassandra Interview Questions for all Cassandra enthusiasts!

eduthrill-download-image

For thousands of similar Cassandra Interview Questions login to our Website or download EduThrill.

Experience the thrill of challenging people around the world on Cassandra Interview Questions!

logo-eduthrill