A candle loses nothing by lighting another candle.
🏗 What is CI/CD? Think of software development like running a factory: 🔹 Continuous Integration (CI) — the “build & test” stage Goal: Make sure every code change works well with the existing system. 👉 CI ensures that the main Read More …
Overview Mastering our craft describes the long-term process of achieving a high degree of skill and comprehensive understanding in a specific discipline. It is a journey of continuous improvement that goes beyond basic competence and is driven by passion, dedication, Read More …
Data is the fuel for analytics and machine learning — but bad data leads to bad decisions. Imagine building a sales dashboard where customer ages are negative, emails are missing, or revenue numbers don’t add up. That’s where data validation Read More …
Data powers everything today — from the way Netflix recommends your next movie to how businesses predict customer demand. But before data can be analyzed, it must be moved, shaped, and transformed into something useful. That’s where ETL and ELT Read More …
Data is the backbone of decision-making in modern businesses. But raw data—like endless spreadsheets of transactions—can be overwhelming. The Star Schema is one of the simplest, most effective, and scalable ways to structure data for analysis. Think of it as Read More …
In today’s fast-paced digital world, real-time data is critical for making informed decisions. From e-commerce clickstreams to IoT sensor data, the ability to process and analyze information as it arrives provides a significant competitive advantage. This blog post will demystify Read More …
Overview Creating a social media application that can handle millions of users, real-time data, and high traffic is a significant technical challenge. It requires a resilient, scalable, and highly available infrastructure. Instead of building from scratch, modern platforms leverage cloud Read More …
In today’s data-driven world, ensuring the accuracy and integrity of your data is paramount. This is especially true for sensitive information like Permanent Account Numbers (PAN), which are crucial for financial and legal operations in India. This guide walks you Read More …
Overview In the dynamic world of software engineering, the journey from writing lines of code to architecting complex, scalable systems is a path that requires not only technical prowess but also a unique blend of vision, leadership, and motivation. This Read More …
Headline: Your First Steps into the World of Apache Kafka Target Audience: Tech-savvy individuals, students, or small business owners who are thinking about using Kafka and want a clear, conceptual understanding of the process. Blog Content: So, you’ve heard about Read More …
Headline: Why Your Business Needs a Real-Time Data Backbone: A Practical Guide to Apache Kafka Target Audience: Business leaders, managers, and anyone who needs to understand the “why” behind real-time data processing without getting lost in technical jargon. Blog Content: Read More …
1. Introduction — What is a Sequence? Imagine you’re at a movie theatre ticket counter. Each customer gets a unique ticket number — 1, 2, 3, 4… This numbering happens automatically and ensures no two customers have the same ticket number. In databases, a sequence Read More …
1. What is Braintree? Braintree (a PayPal service) is a payment gateway and processor that lets businesses accept payments online or in apps.It supports: Think of it as the bridge between your website/app and the customer’s bank account. 2. How Does It Work? Read More …
In today’s fast-paced digital landscape, building a successful application goes beyond writing functional code. A robust solution architecture is the backbone of any reliable and scalable system, ensuring it can meet current demands and adapt to future challenges. A well-designed Read More …
For the Non-Technical Reader 👨💻 Ever wonder how the apps you use every day get their information or talk to one another? They all use a digital language called an API (Application Programming Interface). Here are six of the most Read More …
In the modern digital world, we generate a massive amount of unstructured data. This includes everything from photos and videos to emails, sensor data, and web pages. Traditional storage methods, like file or block storage, often struggle to keep up Read More …
JSON Web Tokens (JWT) have become a standard for securing APIs, offering a stateless and efficient way to handle user authentication. This blog post will walk you through the entire JWT authentication flow, from a user logging in to making Read More …
Overview In the complex world of modern web applications, where millions of users can simultaneously access services, ensuring smooth and uninterrupted performance is paramount. This is where load balancers step in as crucial architectural components. A load balancer is a Read More …
Concept Simple Definition Memorable Analogy Primary Benefit Scalability Handling more users/data without losing performance. Expanding a balloon without it bursting. Ensures continued performance as demand grows. Load Balancers Directing traffic evenly across multiple servers. A restaurant manager directing customers to Read More …
Overview Every popular application, from social media giants to streaming services, faces a common challenge: how to handle an ever-increasing user base and data volume without slowing down or crashing. This challenge is addressed by a fundamental concept in system Read More …
Introduction You’ve heard the buzz: “microservices!” They promise faster releases, independent teams, and a shiny, scalable system. They’re the cool new toy every developer wants to play with. But what happens when you unbox it? Let’s hop on the microservices Read More …
Overview In the rapidly evolving landscape of Large Language Models (LLMs), prompt engineering has emerged as a critical skill for developers. Crafting effective prompts is no longer just about getting a desired output; it’s about unlocking the full potential of Read More …
🧠 Overview: How reCAPTCHA v3 Works Unlike v2 (which uses a checkbox), reCAPTCHA v3 is invisible and works by: 🧱 Architecture Components 🧩 reCAPTCHA v3 Integration Flow Diagram 💻 Sample Spring Boot Integration ✅ Backend Config 🧩 REST Controller 🛠 Service Layer 🔍 RecaptchaResponse DTO ⚙️ Read More …
Introduction Code reviews are a cornerstone of high-quality software development. They catch bugs, improve design, ensure consistency, and foster knowledge sharing within a team. However, manual code reviews can be time-consuming, prone to human error, and sometimes inconsistent, leading to Read More …
Introduction Are you tired of the painstaking process of writing unit tests, especially with powerful mocking frameworks like JMockit? What if you could accelerate this process, ensure consistency, and reduce boilerplate code with the help of AI? At KnowledgeWala.com, we’re Read More …
Overview In today’s interconnected world, our digital identities are constantly under threat. Data breaches, phishing attempts, and brute-force attacks are daily occurrences. One of the simplest, yet most effective, ways to protect yourself is by implementing strong, unique passwords and Read More …
Overview Your digital life is just as real, and arguably just as valuable, as your physical one. Think about it: your cherished family photos, your banking details, your entire professional network, your personal messages, and even your health records – Read More …
Introduction: Remember when we talked about AI being in your pocket and making your home smarter? (Link to previous relevant blog post here!) It’s clear that Artificial Intelligence is no longer a futuristic fantasy; it’s a powerful force shaping our Read More …
Headline Options: Introduction Shift from current examples to where AI is headed, maintaining the simple, useful, and real-time focus. Acknowledge that AI is constantly evolving. What’s Next for AI? Considerations & A Balanced View (Briefly touch on important aspects): Conclusion Read More …
Headline Options: Introduction Now that readers understand where AI is, let’s give them a basic understanding of how it works, without getting overly technical. Focus on the concept of data and learning. Key Concepts Explained Simply: Practical Examples of AI Read More …
Headline Options: Introduction Building on the previous post, delve into how AI extends beyond personal devices into our homes and broader services, emphasizing convenience and automation. How AI Adds Convenience and Automates Tasks: Real-Time Examples: Conclusion Highlight how AI often Read More …
Headline Options: Introduction Start by demystifying AI. Many people associate AI with robots from movies. Explain that AI is simply about making machines “smart” enough to do tasks that usually require human intelligence. Emphasize that it’s not a future concept, Read More …
Introduction Running a web application built with Angular for the frontend, Spring Boot for the backend, AWS MySQL RDS for the database, and deployed on AWS ECS Fargate can be complex. Issues can arise in the client-side code, server-side logic, Read More …
1. Overview This document outlines the design of a yearly subscription model that allows customers to subscribe and utilize services across multiple applications. Each application has unique user identifiers (e.g., user_key/email for application1, phone_number for application2). The system ensures efficient Read More …
Java microservices and .NET microservices can communicate with each other using various methods, such as: Overall, the choice of communication method depends on factors such as the nature of the application, system requirements, performance considerations, and the available tooling and Read More …
Delivering software code with good quality is crucial for the success of any software development project. It ensures that the software is reliable, maintainable, and meets the requirements of the users. Here’s a step-by-step guide to help you achieve this: Read More …
The gRPC (gRPC Remote Procedure Calls) is an open-source remote procedure call (RPC) framework developed by Google. It enables efficient communication between different applications running on various platforms and environments by using protocol buffers (protobuf) as the interface definition language. Read More …
Improving software backend developer productivity and efficiency involves adopting best practices and optimizing processes. Here are some key practices and processes along with detailed examples and explanations: By incorporating these practices and processes, a software development team can enhance productivity, Read More …
Introduction: Data science is a powerful tool that allows us to extract meaningful insights from raw data. In this case study, we’ll dive into the fascinating world of predicting housing prices. Our goal is to develop a model that accurately Read More …
Thinking like a software architect involves a combination of technical knowledge, problem-solving skills, and the ability to balance various considerations to design effective software solutions. Here are some key aspects to consider when thinking like a software architect: Remember that Read More …
A Database Management System (DBMS) is software that allows users to create, manipulate, and manage databases. It serves as an intermediary between the users and the underlying database, providing an organized and efficient way to store, retrieve, update, and delete Read More …
TCP/IP (Transmission Control Protocol/Internet Protocol) is a suite of communication protocols that form the backbone of the internet and most modern computer networks. It provides the rules and conventions for devices to communicate and exchange data over a network, enabling Read More …
Ensuring scalability and resilience in microservices architecture involves implementing certain best practices and employing specific techniques. Here are some key considerations to help achieve scalability and resilience: By applying these principles and techniques, you can enhance the scalability and resilience Read More …
In a Microservices architecture, service discovery and registration are essential components for enabling communication between services. The primary goal is to allow services to locate and connect with each other dynamically, without hard-coding specific endpoints or configurations. Here are some Read More …
In a Microservices architecture, managing deployments and rollbacks can be challenging due to the distributed nature of the system. However, with proper planning and the right tools, you can handle deployments and rollbacks effectively. Here are some best practices to Read More …
Monitoring and troubleshooting microservices can be challenging due to their distributed nature. However, there are several best practices and tools available to help you effectively monitor and troubleshoot microservices. Here’s a step-by-step guide: Remember, monitoring and troubleshooting microservices is an Read More …
Handling service versioning and backward compatibility in a Microservices architecture is crucial to ensure smooth evolution and maintenance of your system. Here are some best practices for managing service versioning and backward compatibility: By following these practices, you can effectively Read More …
Testing and continuous integration (CI) in a Microservices architecture can be challenging due to the distributed nature of the system. However, with proper strategies and tools, you can effectively handle testing and CI in a Microservices architecture. Here are some Read More …
Handling service resiliency in case of failures involves implementing strategies and best practices to ensure that your system can recover from failures and continue operating with minimal disruption. Here are some key approaches to consider: Remember that the specific strategies Read More …
Selecting the right database for your needs depends on various factors, including the nature of your data, the scale of your application, performance requirements, scalability, budget, and specific features you require. Here are some steps to help you in the Read More …
Choosing the best relational database for an enterprise application depends on various factors such as the specific requirements of the application, scalability needs, performance expectations, data volume, budget, and existing infrastructure. Here are some popular and commonly used relational databases Read More …
No, Java technologies are not dying. Java continues to be one of the most widely used programming languages and is still heavily utilized in various domains, including enterprise software development, Android app development, and large-scale web applications. It has a Read More …
To ensure that microservices are loosely coupled and highly cohesive, you can follow several best practices. Here are some key strategies: By following these practices, you can create a loosely coupled and highly cohesive microservices architecture, enabling flexibility, scalability, and Read More …
Here’s a sample project that demonstrates how to display employee data using React: First, make sure you have Node.js and npm (Node Package Manager) installed on your machine. Then, follow these steps: Change into the project directory: Replace the contents Read More …
Swagger is an open-source software framework that helps developers design, build, document, and consume RESTful web services. It provides a set of tools and specifications for creating and working with APIs (Application Programming Interfaces). At its core, Swagger is a Read More …
Preparing for an engineering manager role involves developing a combination of technical, leadership, and managerial skills. Here are some steps you can take to prepare for an engineering manager role: Remember that becoming an effective engineering manager is an ongoing Read More …
Analyzing software application production issues requires a systematic approach to identify, isolate, and resolve the problems. Here’s a step-by-step guide on how to analyze software application production issues: Remember, software application production issues can be complex and may require iterative Read More …
Gathering system requirements is a crucial step in the software development life cycle. It involves identifying, documenting, and prioritizing the needs and expectations of the stakeholders for a given system. Here’s a step-by-step guide to help you through the process: Read More …
Object-oriented design and component-based design are both popular approaches to software development, but they differ in several key aspects. Here are the main differences between object-oriented design and component-based design: Both object-oriented design and component-based design have their strengths and Read More …
Clustering is a data analysis technique used in machine learning and data mining. It involves grouping similar data points together based on their characteristics or attributes. The purpose of clustering is to discover inherent patterns, structures, or relationships in the Read More …
Scalability refers to the ability of a system, network, or software application to handle an increasing amount of work, users, or data without sacrificing performance or efficiency. It is a desirable characteristic that allows a system to adapt and accommodate Read More …
Introduction This blog contains interview questions and answers related to software architect roles. This will contain questions related to various categories like – Please click on the Question to read detailed information. How would you deploy a newer version of Read More …
As a new team member, it’s important to start off on the right foot and set yourself up for success. Here are some guidance points that can help you integrate smoothly into your new team: Remember, becoming a valuable team Read More …
Identifying the responsible individuals for each task in a software project is essential for effective project management and accountability. Here are several steps you can follow to help identify who is responsible for each task: By following these steps, you Read More …
Designing a payment processing system involves several key components and considerations. Here’s a high-level overview of designing a payment processing system and the modifications required for a distributed system: Now, if the payment processing system is distributed, several modifications are Read More …
To deploy a newer version of a live website, follow these steps: Remember, each website deployment may have unique requirements and considerations. It’s crucial to adapt these steps to fit your specific environment and needs.
Introduction We can provide you with an example of a Serverless architecture using Spring Boot. In this example, we’ll create a simple RESTful API using Spring Boot and deploy it to AWS Lambda using the Serverless Framework. Here are the Read More …
Introduction Serverless architecture is a cloud computing model where developers can build and run applications without the need to manage servers. In serverless architecture, the cloud provider takes care of server management, automatic scaling, and resource allocation based on the Read More …
What qualities do you believe make a successful engineering manager? Successful engineering managers possess strong technical expertise, effective communication skills, and the ability to lead and inspire their team. They should also have excellent problem-solving abilities, be adaptable to change, Read More …
The code peer review is an important process in the software development life cycle. It should be implemented and followed properly.This Video blog helps our development team to prepare and use a code peer review checklist to streamline the code Read More …
Introduction Leading a team is a wonderful job and everyone loves it. It is an extraordinary skill earned by hard work and experience. Some people gained these skills with their behavior and communication with many resources. Please find six critical Read More …
Introduction This Sample Amazon AWS Certified Developer Associate Quiz will help Amazon AWS Certified Developer Associate to enhance their skills for short and important questions which might be asked during interview/certification exam. Please start mock exam by Clicking on Start Read More …
Introduction This blog helps to contain most of the IBM Cúram Interview question(s).These are real Interview questions asked during the various interview process company like eSystems, IBM, RedMane, DC, NC, SC, and other projects. Please add your question and answers Read More …
Introduction LinkedIn is a very famous professional community portal. It helps people to do below things – Search the best Job for Job seeker Find the best resource for the recruiter Maintain People Relationship Learning new Technologies and Enterprise Related Read More …
Introduction his document provides a clear understanding of the roles and responsibilities of a Full Stack Developer in a project. It also outlines the essential technologies and skills required for the role. A Full Stack Developer works on both the front-end (user-facing Read More …
This tutorial consists of important Programming Practical Assignment which can be used in academic assignment as well in the work environment. These assignments problems are collected from various sources and implemented by KW Team. Please add your assignment in the Read More …
Introduction This blog helps to review important interview questions for the following job Profile – Customer Support Service Customer Care Help Desk Support Front Desk Worker Case Worker There are multiple ways to respond to a question moreover We adopted Read More …
Problem Description A man has two ropes of varying thickness (Those two ropes are not identical, they aren’t the same density nor the same length nor the same width). Each rope burns in 60 minutes. He actually wants to measure Read More …
Problem Description You have 12 balls that all weigh the same except one, which is either slightly lighter or slightly heavier. The only tool you have is a balance scale that can only tell you which side is heavier. Using Read More …
Problem Description There are 100 prisoners all sentenced to death. One night before the execution, the warden gives them a chance to live if they all work on a strategy together. The execution scenario is as follows – On the Read More …
Introduction The database is a very important component of any software and needs to maintain and monitor properly. The main job of a database administrator is to monitor the database, he can monitor the activities of the database and its Read More …
Problem Description A farmer with a fox, a goose, and a sack of corn needs to cross a river. The farmer has a rowboat, but there is room for only the farmer and one of his three items. Unfortunately, both Read More …
Introduction This document contains a questions with answers related to Java Enterprise Architecture Exam. Please go through the docs below and let us know your feedback. These are sample questions to understand the exam pattern. As per our understanding, Everyone Read More …
Introduction Quality assurance (QA) is any systematic process of determining whether a product or service meets specified requirements. QA establishes and maintains set requirements for developing or manufacturing reliable products. A quality assurance system is meant to increase customer confidence Read More …
Introduction Medicare and Medicaid are two separate, government-run programs that were created in 1965 in response to the inability of older and lower-income Americans to buy private health insurance. They were part of President Lyndon Johnson’s “Great Society” vision of Read More …
Introduction This post will help to understand and explain how to give the answer to some important questions which ask in most of the interview process. Most of the interviewer made mistake and not prepare these questions properly. These questions Read More …
Introduction This blog helps to contain all important questions which asked during an interview for Software Tester profile. As We know, Software Tester Job is very critical and important. Also, Software Tester profile is a mix of Business Analyst, Tester, Read More …
Introduction This post will have most important interview questions which used to ask in most of the reputed companies like Google, Amazon, NetApp, Wells Fargo, Wipro, Infosys, TCS, SAP etc. We are just adding Questions to this post and the Read More …
Introduction This post will have most important interview questions which used to ask in most of the reputed companies like Google, Amazon, NetApp, Wells Fargo, Wipro, Infosys, TCS, SAP etc. We are just adding Questions to this post and the Read More …
Introduction This post will have most important interview questions which used to ask in most of the reputed companies like Google, Amazon, NetApp, Wells Fargo, Wipro, Infosys, TCS, SAP etc. We are just adding Questions to this post and the Read More …
Introduction This post will have most important interview Coding and analytics questions which used to ask in most of the reputed companies like Google, Amazon, NetApp, Wells Fargo etc. We are just adding Questions to this post and the technical Read More …
Introduction This post will have most important interview questions which used to ask in most of the reputed companies like Google, Amazon, Net App, Wells Fargo etc. We are just adding Questions to this post and the technical reader will Read More …
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Introduction Design Patterns are very popular among software developers. A design pattern is a well described solution to a common software problem. Some of the benefits of using design patterns are: Design Patterns are already defined and provides industry standard Read More …
Introduction In this section, we are giving few java interview programs faced by some of my friends. If you come across any questions, post it to me. I can provide solutions. You can email me at dknitk@rediffmail.com. How to Read More …
Introduction This post explain software testing interview questions with answers. Please go through the tutorial and let us know if you want to add or update any question/answer. Please feel free to send message for any improvement. Q1. What is Read More …
1. Are you Cúram certified? How did you attain your certification? If you are not Certified then say “I am not Curam Certified but preparing for certification and going through Curam Server,Modeling, Client and PPT provided by IBM. Also,along with Read More …
Introduction: This post contain various import questions which asked during interview process. Candidates who are planning to prepare interview for Curam technology will get help from this post. It explains all important questions which candidate may face, please check questions Read More …
This post receives all the relevant questions which asked while HR Interview. Many applicants rejected from HR interview due to lack of knowledge and practice. This tutorial will attempt to describe all related questions with examples. Q1. Tell me about Read More …