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

Big Data Interview Questions

Questions Answers Views Company eMail

How to identify that the given operation is transformation or action?

277

Why we need compression and what are the different compression format supported?

282

Is ambari python client can be used to make good use of ambari api’s?

Mention what does the shell commands “capture” and “consistency” determines?

Explain what is composite type in cassandra?

Mention what are the main components of cassandra data model?

Explain what is a cluster in cassandra?

Tell any two features of flume?

116

What will be the result when you do cast(‘abc’ as int)?

764

If you omit the overwrite clause while creating a hive table,what happens to file which are new and files which already exist?

753

How will you convert the string ’51.2’ to a float value in the price column?

887

Can I do transforms or add new functionality?

Why is space not freed up when I issue drop table?

Is avro supported?

Explain what is zookeeper in kafka? Can we use kafka without zookeeper?

537

Un-Answered Questions { Big Data }

What is the use of flume in hadoop?

Why is Apache Spark faster than Hadoop MapReduce?

656

Is hadoop a database?

685

If you omit the overwrite clause while creating a hive table,what happens to file which are new and files which already exist?

753

What is Block in HDFS?

What will apache driver do?

According to IBM, what are the three characteristics of Big Data?

436

How many instances of a jobtracker run on hadoop cluster?

641

how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?

784

Does sqoop use mapreduce?

Is kafka big data?

477

What is rack awareness in hadoop?

487

What is the latest version of sqoop?

How would you pipeline large amounts of data?

617

What does the Spark Engine do?

323

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