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 Schema on Read and Schema on Write?

956

How to overwrite an existing output file during execution of mapreduce jobs?

MRO,

1137

Write a Pig UDF Example ?

815

What is the difference between traditional RDBMS and Hadoop?

1210

What is the main purpose of HDFS fsck command?

1852

What is safe mode in Hadoop?

1015

Detail description of the Reducer phases?

915

What is MapFile?

1003

What do you understand from Node redundancy and is it exist in hadoop cluster?

1277

What is HBase?

367

What happens to a NameNode that has no data?

1624

What is a Hive Metastore?

1 2107

How can an application connect to Hive run as a server?

1217

What is a heartbeat in HDFS?

978

What are sink processors?

949

Un-Answered Questions { Big Data }

Mention what is ObjectInspector functionality in Hive?

779

What is the difference between DSM and RDD?

316

What do sorting do?

722

What is the difference between spark ml and spark mllib?

308

What combiners is and when you should use a combiner in a MapReduce Job?

676

Why apache spark is faster than hadoop?

405

How to create database statement in apache tajo?

What are the different input sources for Spark Streaming?

389

Define Writable data types in Hadoop MapReduce?

695

How does cassandra perform read operation?

Which modes can Hadoop be run in? List a few features for each mode?

510

What is Hive Database?

747

List few components that are using big data?

587

Can you explain commodity hardware?

458

Explain cap theorem?

107

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