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 space will the split occupy in Mapreduce?

731

What is a RecordReader in Hadoop MapReduce?

729

What is the difference between HDFS block and input split?

954

How to write MapReduce Programs?

771

What is Apache Hive?

886

What kind of applications is supported by Apache Hive?

864

How can you configure remote metastore mode in Hive?

883

What is indexing and why do we need it?

868

What is the use of Hcatalog?

1009

Where is table data stored in Apache Hive by default?

866

What is ObjectInspector functionality?

876

Explain about the different types of join in Hive?

868

What is Apache HBase?

273

What is HBaseFsck class?

265

What is REST?

255

Un-Answered Questions { Big Data }

What is streaming?

742

When is it not recommended to use MapReduce paradigm for large

703

Differentiate HDFS & HBase?

Is it possible to rename the output file, and if so, how?

517

How to resolve small file problem in hdfs?

1036

What is speculative execution in Hadoop?

1101

Explain fullOuterJoin() operation in Apache Spark?

454

What is the problem with HDFS and streaming data like logs

1078

What are the prime features of apache zookeeper?

How will format the HDFS ?

1133

what is ODBC and JDBC connectivity in Hive?

730

Explain why do we need hadoop?

719

What is a tuple?

1288

Explain the hadoop-core configuration?

744

How much faster is Apache spark than Hadoop?

309

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