A map contains values on the basis of key, i.e. key and value pair. Each key and value pair is known as an entry. A Map contains unique keys. A Map is useful if you have to search, update or delete elements on the basis of a key. Table of Content Overview of Map Collection Why and When Use Maps Creating a New Map Iterating Over a Map Final Voice Overview of Map Collection A Map is a object that maps keys to values, or is a collection of attributes-value pairs. It models the function abstraction in mathematics. The following picture illustrates a map : A Map cannot contain duplicate key ..read more

Storing, processing, and providing a large amount of data quickly to the user is one of the toughest tasks for industries. And for this, industries are using different types of intelligent databases that are easy to use and faster in process. Today, MongoDB is one of the intelligent document databases that is using by many industries.  In this article, we are going to discuss what is MongoDB and the industry use cases of MongoDB. Table of Content What is MongoDB? Features of MongoDB Advantages of MongoDB Case Study: Forbes What is MongoDB? MongoDB is a document database with the scalab ..read more

In order to build, deploy and run the applications industries are moving towards containerization technology. And the most famous tool of this container technology is Docker. In this article, we are going to discuss what is docker and how it is helping industries to accelerate their development. In this article, we are going to discuss all the concepts of docker. Table of Content What is a container? What is docker? Getting started with Docker Basic terminology of Docker How to run a container? How to manage your Docker container Docker Networking Docker Volume How to Pass variable to our Doc ..read more

Competitive programming is basically a kind of mind sport or exercise which depends on the situation or criteria which is already given in the problem. Competitive programming helps to improve your logical skills by testing it. The user only have to give the optimized solution by keeping all the constraints in mind and solve the problems by basic prior knowledge of Programming. Not only logical skills CP also helps to improve one’s analytical thinking, pattern recognition, pressure handling and it also improves the DSA part. TABLE OF CONTENTS Why to Learn Competitive Programming. Steps for Co ..read more

2.5 quintillions bytes of data, we are producing daily. And to manage this extensive amount of data Hadoop cluster is the solution. In Hadoop, we use Namenode and Datanode cluster setup working on Hadoop Distributed File System(HDFS) design. In this article, we are going to learn Hadoop cluster setup using Ansible. Let me give you a little brief about what are Hadoop and Ansible? What is Hadoop? Apache Hadoop is an open-source software library that allows for the distributed processing of a large amount of data.  Hadoop uses the MapReduce algorithm and its design is known as HDFS(Hadoop D ..read more

In This article, we are going to set up a simple chat room using Python. Here we are going to use some basic concepts of Socket programming working on UDP and TCP protocol. Table of content Socket Programming Intro UDP TCP Multi-threading Room setup using UDP Room setup using TCP Final Voice Socket Programming A Socket programming is a way of connecting two or more nodes on a layer. Here communication is set between server and clients(one or more). Where socket can be thought of as endpoints of the communication channel which is a combination of IP and port number. Now, the socket connection ..read more

An SMS bomb is a similar variant of sending a large number of text messages over SMS. The technique is a means of cyberbullying or online harassment and an email bomb is a form of net abuse consisting of sending large volumes of email to an address in an attempt to overflow the mailbox. TBomb v2.2 An open-source SMS or call bomb for Linux And Termux. Due misusing of TBomb, several APIs died. Don’t be afraid if you don’t see all send messages. The script requires a working network connection to work. No balance will be deducted for using this script to send S ..read more

Just like Windows, Mac OS, Linux is an operating system. From smartphones to cars, desktops or laptops, supercomputers, and home appliances, the Linux system is everywhere. All of the world’s top 500 supercomputers run most of the Internet using the Linux kernel. Let’s get to know what actually Linux is and why it is so popular? What is Linux? Linux is an open-source operating system. By the term open-source means, anyone from the outside world can access the actual code, modify it according to their need. Android is powered by Linux operating system. But besides being the platform of choic ..read more

Ever Imagine you can control the server connection of your system. This means you can ping Google but not to Facebook at the same time. Ya… I am saying right you can easily do this and today I am going to discuss with you how we can actually set an environment where our system will be able to connect with Google but not with Facebook. In this small hack, we are going to use some simple networking concepts. Don’t worry if you don’t have any knowledge about networking. We are going to discuss all with very basics. Pre-requisite: An operating system A stable internet connection I am going to wo ..read more

Making the deployment easy, Industries are adopting automation. Today, I am going to introduce you to one of the most advanced tools of the DevOps world i. e. OpenShift. OpenShift is the finest automation tool work on several other tools to solve many complex use cases of Industry. In this article, we are going to discuss OpenShift and the industry use cases of OpenShift. Table of content What is OpenShift? What is Kubernetes? What does used for? Advantage of OpenShift. Case study: Cisco What is OpenShift? RedHat OpenShift is a Kubernetes container platform that provides a trusted envi ..read more