Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?

422

What are the different commands used to startup and shutdown Hadoop daemons?

527

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

526

How is the splitting of file invoked in Hadoop framework?

513

Is it possible to provide multiple input to Hadoop? If yes then how?

502

Is it possible to have hadoop job output in multiple directories? If yes, how?

452

What is the default replication factor and how will you change it?

533

Explain Hadoop Archives?

535

Explain the Single point of Failure in Hadoop?

477

Explain Erasure Coding in Hadoop?

503

What is Disk Balancer in Hadoop?

511

How would you check whether your NameNode is working or not?

420

Is Namenode machine same as DataNode machine as in terms of hardware?

460

If DataNode increases, then do we need to upgrade NameNode?

549

What happens if the number of reducers is 0 in Hadoop?

481

Un-Answered Questions { Big Data }

What do you mean by metadata in HDFS? Where is it stored in Hadoop?

Explain the term Cluster?

105

what is ODBC and JDBC connectivity in Hive?

675

What are the key features of Apache Spark that you like?

388

What are the features of apache spark?

289

How can a user create a Keyspace in Cassandra?

What is Importance of Java in Apache Kafka?

545

In ambari 2.6.2 version added the following features:

Is apache spark in demand?

265

Is hadoop the future?

649

Define the level of parallelism and its need in spark streaming?

391

Does spark replace hadoop?

284

Explain the hadoop-core configuration?

692

What do you understand by Kundera?

Can I learn spark without hadoop?

268

For More Un-Answered { Big Data } Questions Click Here