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00: 13 Data Warehouse interview Q&As – Fact Vs Dimension, CDC, SCD, etc

Q1. What is dimensional modelling in a Data Warehouse (i.e. DWH)?
A1. A dimensional model is a data structure technique optimised …

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00: Apache Spark eco system & anatomy interview Q&As

Q01. Can you summarise the Spark eco system?
A01. Apache Spark is a general purpose cluster computing system. It provides high-level …

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00: Data Lake Vs. Data Warehouse Vs. Delta Lake

Modern data architectures will have both the Data Lakes & Data Warehouses.

Q1. What questions do you need to ask for …

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00: Q1 – Q6 Hadoop based Big Data architecture & basics interview Q&As

There are a number of technologies to ingest & run analytical queries over Big Data (i.e. large volume of data). Big …

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01: Getting started with Zookeeper tutorial

Installing Zookeepr on Windows Step 1: Download Zookeeper from http://zookeeper.apache.org/. At the time of writing downloading zookeeper-3.4.11.tar.gz. Step 2: Using 7-zip … … Read more ›...

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01: Apache Flume with JMS source (Websphere MQ) and HDFS sink

Apache Flume is used in the Hadoop ecosystem for ingesting data. In this example, let’s ingest data from Websphere MQ. Step … … Read more ›...

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01: Apache Hadoop HDFS Tutorial

Step 1: Download the latest version of “Apache Hadoop common” from http://apache.claz.org/hadoop using wget, curl or a browser. This tutorial uses …

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01: Coding “Java way in Scala” Vs “Scala way in Scala”

Example #1: Read from a list & write to a list

Java Way in Scala

Output: List(Java Programming, Scala Programming, Ruby …

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01: Databricks getting started – Spark, Shell, SQL


Step 1:
Signup to Databricks community edition – https://databricks.com/try-databricks. Fill in the details and you can leave your mobile number …

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01: Docker tutorial with Java & Maven

Pre-requisite: Docker is installed on your machine for Mac OS X (E.g. $ brew cask install docker) or Windows 10. Docker

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01: Getting started with Apache Kafka on Mac tutorial

Prerequisite This tutorial assumes that Java 8 is installed. You check this with

If Java is not installed, you can install …

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01: Getting started with Python on Mac OS

Python is popular in Big Data & data science projects. This tutorial outlines the basic steps to get started with Python …

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01: Installing & getting started with Apache Storm on Cloudera quickstart

Step 1: Download latest version of Storm (E.g. apache-storm-1.1.1.tar.gz) from http://storm.apache.org/downloads.html On Cloudera machine it will be downloaded to the folder … … Read more ›...

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Java FAQs to Fast-track & Go places

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