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 hdfa differs with nfs?

738

How a task is scheduled by a jobtracker?

674

How many maximum jvm can run on a slave node?

686

What are the two main parts of the hadoop framework?

669

What is the use of combiners in the hadoop framework?

614

What is the jobtracker?

633

What is the jobtracker and what it performs in a hadoop cluster?

637

How many instances of tasktracker run on a hadoop cluster?

679

Explain the use of tasktracker in the hadoop cluster?

633

How does a namenode handle the failure of the data nodes?

691

How is spark sql different from hql and sql?

269

Is there a module to implement sql in spark? How does it work?

300

What is pagerank in graphx?

284

How is streaming implemented in spark? Explain with examples.

357

Can you use spark to access and analyze data stored in cassandra databases?

305

Un-Answered Questions { Big Data }

Use of Help command in Hadoop sqoop?

What is the abstraction of Spark Streaming?

263

In hadoop_pid_dir, what does pid stands for?

524

Difference Between Hadoop and HDFS?

Can we broadcast an rdd?

296

Explain the process for starting a kafka server?

523

What operations RDD support?

308

What is the difference between a node, a cluster, and data centre?

253

What is Safemode in Apache Hadoop?

733

Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?

660

What are the four essential parameters of a mapper?

652

While processing data from hdfs, does it execute code near data?

What is javardd?

294

why should we use 'group' keyword in pig scripts?

559

Differentiate between FileSink and FileRollSink?

107

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