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

Big Data Interview Questions

Questions Answers Views Company eMail

Is it possible to run Apache Spark on Apache Mesos?

1 309

What are the different levels of persistence in Spark?

1 352

What is the default level of parallelism in apache spark?

1 415

What is Directed Acyclic Graph in Apache Spark?

1 430

What according to you is a common mistake apache spark developers make when using spark ?

1 291

Name some internal daemons used in spark?

1 383

Name the two types of shared variable available in Apache Spark?

1 314

Explain distnct(),union(),intersection() and substract() transformation in Spark?

1 339

Explain Accumulator in Spark?

1 469

What is Speculative Execution in Apache Spark?

1 308

Name three data source available in SparkSQL

1 321

Is it possible to use Apache Spark for accessing and analyzing data stored in Cassandra databases?

1 319

Can you explain how you can use Apache Spark along with Hadoop?

1 325

Explain Dsstream with reference to Apache Spark

1 412

What is the role of Driver program in Spark Application?

1 292

Un-Answered Questions { Big Data }

What is the roadmap for apache driver version one.0?

Where does the data of a Hive table gets stored?

718

How do I set up flume agent?

How to skip header rows from a table in Hive?

872

How can I delete the above index named index_bonuspay?

777

What is the stable version of Hive ?

2673

What is the latest version of sqoop?

What are the different types of tables available in Hive?

745

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

518

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

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

578

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

State some DDL Command with brief Description?

How can you import only a subset of rows from a table?

How you can contact your client everyday ?

1013

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