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?

791

How a task is scheduled by a jobtracker?

718

How many maximum jvm can run on a slave node?

728

What are the two main parts of the hadoop framework?

707

What is the use of combiners in the hadoop framework?

654

What is the jobtracker?

680

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

670

How many instances of tasktracker run on a hadoop cluster?

730

Explain the use of tasktracker in the hadoop cluster?

683

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

739

How is spark sql different from hql and sql?

283

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

310

What is pagerank in graphx?

291

How is streaming implemented in spark? Explain with examples.

377

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

325

Un-Answered Questions { Big Data }

Rack awareness of Namenode?

918

Can we call vms as pseudos?

696

Why are Replications critical in Kafka?

617

What are the parameters used to create keyspace in cassandra?

Is java required for spark?

303

Can you explain heartbeat in hdfs?

How is recovery achieved in Ambari?

Explain about the different types of trformations on dstreams?

319

How can one write custom record reader?

537

What is the design architecture of Cassandra?

Define a commodity hardware? Does commodity hardware include ram?

780

What is node?

Define the term ‘Lazy Evolution’ with reference to Apache Spark

316

When does queuefullexception occur?

697

Explain task granularity

703

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