Featured post

The Ultimate Cheat Sheet On Hadoop

Top 20 frequently asked questions to test your Hadoop knowledge given in the below Hadoop cheat sheet. Try finding your own answers and match the answers given here.




Question #1 

You have written a MapReduce job that will process 500 million input records and generate 500 million key-value pairs. The data is not uniformly distributed. Your MapReduce job will create a significant amount of intermediate data that it needs to transfer between mappers and reducers which is a potential bottleneck. A custom implementation of which of the following interfaces is most likely to reduce the amount of intermediate data transferred across the network?



A. Writable
B. WritableComparable
C. InputFormat
D. OutputFormat
E. Combiner
F. Partitioner
Ans: e




Question #2 

Where is Hive metastore stored by default ?


A. In HDFS
B. In client machine in the form of a flat file.
C. In client machine in a derby database
D. In lib directory of HADOOP_HOME, and requires HADOOP_CLASSPATH to be modified.
Ans: c




Question…

Google Analytics Top Free Courses

With the "Google Analytics Training: Getting Started with Google Analytics" I would like to help you get started with Google Analytics and be able to get actionable insights from it. You will learn how to start tracking conversion rates and what data you need to analyze in order to improve them.

List of Courses

Courses on Google Analytics
This Google Analytics training course will help you master the basics and see what it takes to turbocharge your website performance.


References
Free Course Link

Comments

Popular posts from this blog

Hadoop fs (File System) Commands List

Hyperledger Fabric: 20 Real Interview Questions

AWS Vs Azure Load Balancers Top Insights

4 Important Skills You Need for Data Scientists