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

Big Data Interview Questions

Questions Answers Views Company eMail

Are multiline comments supported in Hive?

3284

How does MapReduce framework view its input internally?

868

What is the stable version of Hive ?

2629

What are the most commonly defined input formats in Hadoop?

1058

What does /var/hadoop/pids do?

1264

What is the use of Combiner?

979

What is Hive ?

992

what is SPF?

1509

what are Task Tracker and Job Tracker?

1071

Explain the basic architecture of Hadoop?

933

On what basis name node distribute blocks across the data nodes?

1060

Name some companies that use Hadoop?

Airtel,

954

what is hadoop archive?

921

Rack awareness of Namenode?

854

Have you ever used Counters in Hadoop. Give us an example scenario?

1063

Un-Answered Questions { Big Data }

What is Sqoop Import? Explain its purpose?

Explain Creating an Index?

What is the difference between SQL and NoSQL?

1077

What do you think about the speculative execution?

435

Explain what is jobtracker in hadoop? What are the actions followed by hadoop?

407

What are the Basics of Hadoop?

930

Differentiate Reducer and Combiner in Hadoop MapReduce?

680

Can we use windows for hadoop?

477

How are file systems checked in hdfs?

What are the most common InputFormats in Hadoop?

591

How do we write our own custom serde?

706

What do you understand by mem-table in cassandra?

Give some advantages of Cassandra?

Is spark used for machine learning?

281

What is the difference between hbase and hadoop/hdfs?

169

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