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?

295

What are the different levels of persistence in Spark?

342

What is the default level of parallelism in apache spark?

396

What is Directed Acyclic Graph in Apache Spark?

398

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

276

Name some internal daemons used in spark?

359

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

305

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

328

Explain Accumulator in Spark?

435

What is Speculative Execution in Apache Spark?

287

Name three data source available in SparkSQL

309

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

306

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

311

Explain Dsstream with reference to Apache Spark

392

What is the role of Driver program in Spark Application?

276

Un-Answered Questions { Big Data }

Since the data is replicated thrice in hdfs, does it mean that any calculation done on one node will also be replicated on the other two?

What are the complex datatypes in pig?

988

What are the different Eval functions available in Pig?

569

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

Describe DataStaxOpsCenter?

174

List the steps in which Cassandra writes changed data into commitlog?

223

What are the filters are available in apache hbase?

155

What is the logistic regression?

443

What are the key features of any nosql database?

Explain the filter transformation?

317

What is the relationship between hdfs, hbase, pig, hive and azkaban?

524

How Mapper is instantiated in a running job?

1006

What is Apache Spark Streaming?

333

Define data lake?

576

Write a short note on the disadvantages of mapreduce

608

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