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 kinds of impala queries or data are best suited for hbase?

Is impala intended to handle real time queries in low-latency applications or is it for ad hoc queries for the purpose of data exploration?

Can I do trforms or add new functionality?

Why does my insert statement fail?

Is impala production ready?

What are the most memory-intensive operations?

What are the main features of impala?

Where can I get sample data to try?

Where can I find impala documentation?

What features from relational databases or hive are not available in impala?

Is hive an impala requirement?

When does impala hold on to or return memory?

What is zookeper?

Mention some instances where zookeeper is using?

How can we create znodes?

Un-Answered Questions { Big Data }

In Hive, can you overwrite Hadoop MapReduce configuration in Hive?

771

How to managed create a table in hive ?

709

How many maximum jvm can run on a slave node?

686

What is Secondary Index in Cassandra ?

What are the different components that are available in kafka?

511

If map reduce is inferior to spark then is there any benefit of learning it?

281

Explain about the basic parameters of mapper and reducer function

1046

On which all platform can Apache Spark run?

269

What do the four V's of Big Data denote?

609

Where are Hadoop’s configuration files located?

507

What is the difference between external table and managed table?

967

What are the different types of data model?

What are the important steps in the configuration?

Does HDFS allow a client to read a file which is already opened for writing in hadoop?

How is fault tolerance achieved in Apache Spark?

305

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