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

Big Data Interview Questions

Questions Answers Views Company eMail

Which company initially developed Hive ?

1 2414

What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

1105

What are the components of Hive architecture?

1112

What is HDFS Federation?

979

What are watches?

1033

Explain the Job OutputFormat?

960

Virtual Box & Ubuntu Installation?

989

What is the difference between HDFS and NAS ?

1372

How Mapper is instantiated in a running job?

993

Where do you specify the Mapper Implementation?

1014

What is the meaning of speculative execution in Hadoop? Why is it important?

1056

What is the InputFormat ?

1017

Command to format the NameNode?

935

Who is a 'user' in HDFS?

890

What is the meaning of the term "non-DFS used" in Hadoop web-console?

1308

Un-Answered Questions { Big Data }

What kind of applications is supported by Apache Hive?

812

In mapreduce what is a scarce system resource? Explain?

667

What are shared variables in spark?

304

What is ZooKeeper Atomic Broadcast (ZAB) protocol?

Can you give us some more details about ssh communication between masters and the slaves?

702

Does Pig give any warning when there is a type mismatch or missing field?

897

Explian the Advantages of HBase?

187

Where is the Mapper Output intermediate kay-value data stored ?

1352

What is HBase HMaster?

360

What is Spark Streaming?

297

What is the syntax of describe Command?

304

What is apache presto?

What does FOREACH do?

577

What is the difference between Pig and SQL?

634

What are the different String functions available in pig?

815

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