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

Big Data Interview Questions

Questions Answers Views Company eMail

Compare MapReduce and Spark?

310

Can MapReduce program be written in any language other than Java?

982

How to set which framework would be used to run mapreduce program?

761

List out Hadoop's three configuration files?

672

Mention Hadoop core components?

730

What is RecordReader in a Map Reduce?

715

Define Writable data types in MapReduce?

720

What happens when a DataNode fails during the write process?

704

Compare RDBMS with Hadoop MapReduce.

685

what is a Task Tracker in Hadoop?

756

what are the most common input formats defined in Hadoop?

711

what daemons run on a master node and slave nodes?

760

What is Text Input Format?

724

what is WebDAV in Hadoop?

802

What platform and Java version is required to run Hadoop?

702

Un-Answered Questions { Big Data }

What is hbase in hadoop?

703

Explain the difference between NameNode

978

How will you update the rows that are already exported?

What are some typical functions of job tracker in hadoop?

482

Explain how do ‘map’ and ‘reduce’ works?

789

Say when to pick “inward table” and “outside table” in hive?

755

What is a bag in apache pig?

579

What was the design goal of Cassandra?

Give some advantages of Cassandra?

Why spark is used?

334

How to resolve IOException: Cannot create directory

1081

Does Pig support multi-line commands?

941

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1118

What is the use of binstorage?

601

What are the different Data Types available in Hive?

758

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