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?

674

How a task is scheduled by a jobtracker?

631

How many maximum jvm can run on a slave node?

640

What are the two main parts of the hadoop framework?

607

What is the use of combiners in the hadoop framework?

580

What is the jobtracker?

592

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

606

How many instances of tasktracker run on a hadoop cluster?

636

Explain the use of tasktracker in the hadoop cluster?

603

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

640

How is spark sql different from hql and sql?

244

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

285

What is pagerank in graphx?

268

How is streaming implemented in spark? Explain with examples.

328

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

292

Un-Answered Questions { Big Data }

What are the advantages of pig language?

822

Mention how can you stop a partition form being queried?

1077

How the Client communicates with HDFS?

1017

Which files are used by the startup and shutdown commands?

658

How would you pipeline large amounts of data?

562

Give the differences between the different types of primary keys in cassandra?

What is CAP Theorem? What aspects does Hadoop support from this theorem?

440

What is the use of BloomMapFile?

635

What is ObjectInspector functionality in Hive?

907

What are the four features of Big Data?

524

Is it possible to run Apache Spark without Hadoop?

265

What are the features of presto?

Explain HDFS “Write once Read many” pattern?

What is difference between flume and kafka?

How many types of tunable consistency are supported in Cassandra?

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