Hadoop is an ecosystem to solve your big data problems. The aim of this Quiz is the people from mainframe background has fewer options to test their Hadoop skills. I have given this Quiz keeping them in mind.
Overview of Hadoop Quiz
The quiz covered the following topics:
- Hadoop eco system
- SQL engine
- Job scheduling
- Workflow of jobs
You can run Hadoop jobs in 3 possible modes :
- Standalone (or local) mode: There are no daemons used in this mode. Hadoop uses the local file system as an substitute for HDFS file system. The jobs will run as if there is 1 mapper and 1 reducer.
- Pseudo-distributed mode: All the daemons run on a single machine and this setting mimics the behavior of a cluster. All the daemons run on your machine locally using the HDFS protocol. There can be multiple mappers and reducers.
- Fully-distributed mode: This is how Hadoop runs on a real cluster.
Your complete guide to create Hadoop project in eclipse a document published by Stanford University.