Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

What are the cases where Apache Spark surpasses Hadoop?

216

In how many ways can we use Spark over Hadoop?

235

Can you explain how you can use Apache Spark along with Hadoop?

244

Can I run Apache Spark without Hadoop?

226

How much faster is Apache spark than Hadoop?

226

To use Spark on an existing Hadoop Cluster, do we need to install Spark on all nodes of Hadoop?

263

Assume that i’m victimization tableau desktop and have a live affiliation with cloud era hadoop knowledge. I would like to press f5 to refresh the image. Is there any way to mechanically refresh the image each x minutes rather than pressing f5 every-time?

258

Explain the processing speed difference between Hadoop and Apache Spark?

212

Can we run Apache Spark without Hadoop?

225

What are the three layers where the hadoop components are actually supported by ambari?

51

What are the core benefits for hadoop users by using apache ambari?

51

Before deploying the hadoop instance, what are the checks that an individual should do?

50

Does impala performance improve as it is deployed to more hosts in a cluster in much the same way that hadoop performance does?

96

Is it possible to run Apache Spark without Hadoop?

212

What are the ways to run spark over hadoop?

216




Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1239


What are the modules that constitute the Apache Hadoop 2.0 framework?

766


What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

613


What are the core components of Apache Hadoop?

476


What is the difference between Apache Hadoop and RDBMS?

503






How is security achieved in Apache Hadoop?

511


What is Apache Hadoop?

583


What is a “Distributed Cache” in Apache Hadoop?

488


What is the problem with small files in Apache Hadoop?

509


What is Rack Awareness in Apache Hadoop?

509


Explain Erasure Coding in Apache Hadoop?

474


What is Disk Balancer in Apache Hadoop?

506


What is a speculative execution in Apache Hadoop MapReduce?

504


What are the modes in which Apache Hadoop run?

510


What is Safemode in Apache Hadoop?

459