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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What is a bag in Pig Latin?

832

What are the different Relational Operators available in pig language?

695

What are the different ways of executing Pig script?

746

Explain the LOAD keyword in Pig script?

599

What is a MapFile?

702

Name the scalar data type and complex data types in Pig?

648

What are the relational operators available related to combining and splitting in pig language?

688

Highlight the key differences between MapReduce and Apache Pig?

685

How to write 'foreach' statement for bag datatype in pig scripts?

655

State the usage of 'filters', 'group' , 'orderBy', 'distinct' keywords in pig scripts?

627

Mention the common features in Pig and Hive?

880

What are the debugging tools used for Apache Pig scripts?

740

Differentiate between Hadoop MapReduce and Pig?

614

What is a UDF in Pig?

703

Differentiate between GROUP and COGROUP operators?

598

Un-Answered Questions { Hadoop }

Can you explain spark rdd?

284

What is difference between a MapReduce InputSplit and HDFS block

645

Explain various cluster manager in Apache Spark?

367

What is the usage of "cqlsh-version" command?

144

How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?

738

Use of list-databases command in hadoop sqoop?

Explain Zero Consistency?

104

Which command is available to show the current HBase user?

156

What causes sparks?

283

Define standalone mode in hbase?

140

What is the data storage component used by Hadoop?

596

What is the module in HDFS?

What is Flume Client?

What is a topic in kafka?

453

What are the four modules that make up the Apache Hadoop framework?

527

For More Un-Answered { Hadoop } Questions Click Here