Hadoop is an open-source software framework used for storing and processing Big Data in a distributed manner on large clusters of commodity hardware. ... Hadoop was developed, based on the paper written by Google on the MapReduce system and it applies concepts of functional programming. Hadoop is a framework that allows for the distributed...

This tutorial gives you an overview and talks about the fundamentals of Apache Mahout. Mahout is an open source machine learning library from Apache. The algorithms it implements fall under the broad umbrella of “machine learning,” or “collective intelligence.” This can mean many things, but at the moment for Mahout it means primarily...

Our Data Engineer interview questions span various topics, evaluating candidates' skills in crafting, implementing, and managing data architecture and pipelines. Topics include database systems, data modeling, ETL processes, distributed computing frameworks, and proficiency in relevant tools. Evaluation criteria focus on problem-solving...

These IDQ Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of IDQ As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and...

Elasticsearch is a potent distributed search and analytics engine that can handle massive amounts of data quickly and nimbly. It is intended to offer almost instantaneous search capabilities for both structured and unstructured data. Elasticsearch allows for flexibility in data feeding and querying since it uses a JSON (JavaScript Object...

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...

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...

HBase, short for Hadoop Database, is an open-source, distributed NoSQL database system designed for handling vast volumes of data. It operates within a distributed architecture, leveraging the Hadoop Distributed File System (HDFS) to store and manage data across multiple nodes in a cluster. Unlike traditional relational databases, HBase stores...

In our cassandra interview questions, we cover a broad spectrum of topics related to this distributed NoSQL database, assessing candidates' comprehension of Cassandra architecture, data modeling, and operational elements. Candidates might encounter questions delving into concepts such as eventual consistency, the CAP theorem, and the significance...