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

Big Data Interview Questions

Questions Answers Views Company eMail

what are the steps involved in decommissioning removing

1077

What is the process to change the files at arbitrary locations in HDFS?

1456

What is difference between split and block in hadoop?

1442

How many JVMs run on a slave node?

1099

What is a block and block scanner in HDFS?

1068

What is compute and Storage nodes?

1063

how would you modify that solution to only count the number of unique words in all the documents?

1017

How can you overwrite the replication factors in HDFS?

1289

What are the modules that constitute the Apache Hadoop 2.0 framework?

1051

Knox and Hadoop Development Tools?

980

In which location Name Node stores its Metadata and why?

1433

Is a job split into maps?

1082

What are different hdfs dfs shell commands to perform copy operation?

1103

If a data Node is full how it's identified?

991

How many filters are available in HBase?

470

Un-Answered Questions { Big Data }

Who uses Cassandra?

What do you know about sequencefileinputformat?

670

Explain the term paired RDD in Apache Spark?

421

Explain nodetool utility.

103

What is KeyValueTextInputFormat in Hadoop MapReduce?

863

What is the process to perform an incremental data load in Sqoop?

What is the role of the kafka producer api.

588

What is the difference between External and Internal Table in Hive?

784

What is Cassandra Data Model?

What are 'slaves' and 'masters' in Hadoop?

480

Explain cap theorem?

107

Why do we use spark?

348

How is spark fault tolerance?

408

What are shared variables?

351

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

320

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