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 much Metadata will be created on NameNode in Hadoop?

What do you mean by metadata in Hadoop?

How to Delete directory and files recursively from HDFS?

How does HDFS Index Data blocks? Explain.

How to access HDFS?

Explain the process that overwrites the replication factors in HDFS?

Difference Between Hadoop and HDFS?

How would you import data from MYSQL into HDFS ?

Define HDFS and talk about their respective components?

What is the module in HDFS?

Tell me two most commonly used commands in HDFS?

What is a block in HDFS? what is the default size in Hadoop 1 and Hadoop 2? Can we change the block size?

HDFS is used for applications with large data sets, not why Many small files?

What is impala?

130

Why we need impala hadoop?

Un-Answered Questions { Big Data }

What is the major difference between local and remote meta-store?

902

What are the most commonly defined input formats in Hadoop?

1058

How many instances of JobTracker can run on a Hadoop Cluser?

1022

Is it necessary to write a mapreduce job in java?

627

What database does spark use?

274

Define the Use of Pig?

550

Why do we need buckets?

714

What are tools available to send the streaming data to hdfs?

Differentiate between piglatin and hiveql?

571

Define data lake?

567

Is Apache Spark a good fit for Reinforcement learning?

292

How businesses could be benefitted with Big Data?

543

What is the function of UNION and SPLIT operators? Give examples?

532

What are the three layers where the hadoop components are actually supported by ambari?

What ensures load balancing of the server in Kafka?

658

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