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

Big Data Interview Questions

Questions Answers Views Company eMail

Map reduce jobs take too long. What can be done to improve the performance of the cluster?

1 765

Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?

1 664

Is apache spark going to replace hadoop?

1 410

What are the advantage of spark?

1 336

What is the disadvantage of spark sql?

1 409

When to use spark sql?

1 348

What are the great features of spark sql?

1 335

Can you explain apache spark?

1 361

What is apache presto?

1 12

Describe REVERSE function in Hive with example?

1 779

How to Alter Hive Database?

1 796

When application is on high latency (high response time)?

1 844

CONCAT function in Hive with Example?

1 881

Is it possible to create multiple table in hive for same data?

1 744

UPPER or UCASE function in Hive with example?

1 877

Un-Answered Questions { Big Data }

When to use explode in Hive?

808

How to skip header rows from a table in Hive?

875

How to set property in apache tajo?

Which modes can Hadoop be run in? List a few features for each mode?

521

What is a Hive variable? What for we use it?

858

What is the roadmap for apache mahout version 1.0?

How job tracker schedules an assignment?

478

What is the function of UNION and SPLIT operators? Give examples?

591

What is the latest version of spark?

310

What is the latest version of ambari that is available in the present market?

Can We Change settings within Hive Session? If Yes, How?

840

List the advantage of Parquet file in Apache Spark?

492

How do I set up flume agent?

104

Give me the examples of Columnar database ?

646

When to choose "External Table" in Hive?

851

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