Drools is a business rule management system (BRMS) with a forward and backward chaining inference based rules engine, more correctly known as a production rule system, using an enhanced implementation of the Rete algorithm. KIE (Knowledge Is Everything) is the new umbrella name to drools,optaPlanner, jBPM, Guvnor, uberFire and related...

SAP Business Intelligence and SAP Business Warehouse are essential components of SAP's software suite aimed at enabling business intelligence and efficient data management. SAP Business Intelligence (BI) encompasses reporting and analysis tools that facilitate the creation of interactive reports and dashboards. It also includes data visualization...

Cloud computing delivers computing services like servers, storage, databases, networking, and software over the internet. It allows users to access and use these resources on-demand, paying for usage instead of owning physical infrastructure. Cloud computing provides flexibility, scalability, and cost-efficiency by outsourcing hardware and...

The soaring demand for logistics management has led SAP to come up with several modules that streamline sales and distribution. Companies are in pursuit of specialists who can seamlessly deal with SAP Logistics. One such SAP Logistics module is SAP SD. To help individuals crack SAP SD job interviews, we have prepared a set of most...

SAP HANA is a SAP in-memory database management system. It excels in real-time data processing and analytics because to its in-memory data storage, columnar database structure, and powerful analytics and machine learning capabilities. SAP HANA also allows for data integration from many sources, powerful data modelling tools, and high availability...

HDFS is a file system that is distributed, scalable, and fault-tolerant designed for big data storage and processing. It serves as a fundamental part of the Apache Hadoop ecosystem. HDFS breaks large files into blocks, replicates them across a cluster of commodity hardware (DataNodes), and uses a single, centralized server (NameNode) to manage...

OpenStack is an open-source cloud computing platform that's like the Swiss Army knife for managing and building cloud infrastructure. Picture it as your digital handyman, equipped with a set of tools to handle everything from launching virtual machines and managing storage to orchestrating your entire cloud ecosystem. With components like Nova...

SOA is an architectural framework that arranges software systems as a set of interconnected services. These services are intended to conduct certain business operations and are capable of communicating with one another through a network. SOA encourages modularity, reusability, and flexibility in software development, allowing businesses to build...

Apache PIG questions and answers with explanation for interview, competitive examination and entrance test. Fully solved examples with detailed answer description, explanation are given and it would be easy to understand. The Apache Pig Online Test is free, and you can practice it multiple times. If you are the kind of an applicant to get nervous...

MapReduce is a programming model and processing technique designed for distributed computing and handling large data sets. It operates by dividing the data processing into two primary phases: the "Map" phase, which involves breaking down a complex task into smaller sub-tasks and processing them in parallel, and the "Reduce" phase, which...