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 is the default value of map and reduce max attempts?

932

What is the Reducer used for?

928

What comes in Hadoop 2.0 and MapReduce V2 YARN

1003

Why comparison of types is important for MapReduce?

961

What is the InputSplit in map reduce ?

1035

In which scenario Pig is better fit than MapReduce?

835

What do you mean by a bag in Pig?

987

Different running modes for running Pig?

895

What are different modes of execution in Apache Pig?

880

What is the role of Zookeeper in HBase architecture?

606

What are the different types of tombstone markers in HBase for deletion?

866

Is there any difference between HBase datamodel and RDBMS datamodel?

1089

What is Apache Flume?

108

What is difference between memory channel and file channel in flume?

How multi-hop agent can be setup in Flume?

110

Un-Answered Questions { Big Data }

How we can change Replication factor when Data is on the fly?

1347

On which hosts does impala run?

Explain about tablespace?

What are the advantages of datasets in spark?

277

How to start and stop spark in interactive shell?

344

How is hdfs block size different from traditional file system block size?

When a large data set is maintained?

727

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

1418

What is the purpose of ‘dump’ keyword in Pig?

626

What is a tuple in pig?

550

Can I set the number of reducers to zero?

399

How data transfer happens from HDFS to Hive?

825

When should you use cassandra?

What is apache mahout?

How to create Users in hadoop HDFS?

For More Un-Answered { Big Data } Questions Click Here