Hadoop Interview Questions
Questions Answers Views Company eMail

What is a bag in Pig Latin?

583

What are the different Relational Operators available in pig language?

436

What are the different ways of executing Pig script?

407

Explain the LOAD keyword in Pig script?

387

What is a MapFile?

427

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

413

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

423

Highlight the key differences between MapReduce and Apache Pig?

444

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

394

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

425

Mention the common features in Pig and Hive?

632

What are the debugging tools used for Apache Pig scripts?

473

Differentiate between Hadoop MapReduce and Pig?

404

What is a UDF in Pig?

432

Differentiate between GROUP and COGROUP operators?

376


Un-Answered Questions { Hadoop }

Define standalone mode in hbase?

102


What is rack-aware replica placement policy?

684


Explain how can we check whether namenode is working or not?

238


What is a column family in Cassandra?

53


Why we need impala hadoop?

37






Can copper cause a spark?

177


What do you understand by compute and storage nodes?

367


what needs to be taken care while adding a Column?

79


Explain JobConf in MapReduce.

513


Define yum?

47


Name some companies that use Hadoop?

669


What do you mean by commit log in Cassandra?

48


List down the languages supported by Apache Spark?

187


Define the difference between hive and hbase?

120


What is the difference between Primary, Partition and Cassandra ?

53