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

Big Data Interview Questions

Questions Answers Views Company eMail

In which scenario Hive is good fit?

1025

Can i access Hive Without Hadoop ?

1 2761

What is difference between internal and external tables in hive?

1 2506

When Hive is run in embedded mode

1922

Can you execute Hadoop dfs Commands from Hive CLI? How?

1205

List the various options available with the Hive command?

964

Why Mapreduce output written in local disk?

1074

What is identity mapper and reducer? In which cases can we use them?

1050

Is YARN a replacement of Hadoop MapReduce?

1 2112

Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?

1265

What is the Hadoop MapReduce API contract for a key and value Class?

1360

Explain the Reducer's Sort phase?

933

What can be optimum value for Reducer?

1011

When is the reducers are started in a MapReduce job?

923

What is the input type/format in MapReduce by default?

1141

Un-Answered Questions { Big Data }

Does hdfs enable a customer to peruse a record, which is already opened for writing?

is there a standard procedure to deploy hadoop?

468

What is hadoop technology?

319

How to perform the inter-cluster data copying work in HDFS?

What are the operational commands of HBase?

206

What is difference between map and flatmap?

309

What does the ambari shell can be provided?

What are the core components that are utilized in hadoop?

566

What are the benefits of block transfer?

1039

Define cell in HBase?

168

How would you pipeline large amounts of data?

668

What is atom in pig?

589

How does inputsplit in mapreduce determines the record boundaries correctly?

694

What happens when you issue a delete command in hbase?

170

What does the high availability of a name-node means? How is it accomplished?

457

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