Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Topic :: Apache Hadoop

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

Explain what is jobtracker in hadoop? What are the actions followed by hadoop?

267

Explain what is hadoop?

301

Mention how hadoop is different from other data processing tools?

285

Mention what are the most common input formats defined in hadoop?

292

Mention what is the difference between an rdbms and hadoop?

281

Mention what are the three modes in which hadoop can be run?

281

Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?

461

Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

300

Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?

305

Explain what is a task tracker in hadoop?

263

Mention what is distributed cache in hadoop?

279

Explain how can you debug hadoop code?

293

Explain what is webdav in hadoop?

325

For using hadoop list the network requirements?

266

Think that I am using tableau desktop & have a live connection to cloudera hadoop data I need to press f to refresh the visualization is there anyway to automatically refresh visualization every ‘x’ seconds instead of pressing f?

240