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 is Catalyst framework?

309

What do you understand by Pair RDD?

407

How can you launch Spark jobs inside Hadoop MapReduce?

333

How can you compare Hadoop and Spark in terms of ease of use?

307

Which one will you choose for a project –Hadoop MapReduce or Apache Spark?

327

What do you understand by Lazy Evaluation?

393

How can you remove the elements with a key present in any other RDD?

311

How Spark uses Hadoop?

314

What is a DStream?

333

What are the various data sources available in SparkSQL?

351

Explain about the core components of a distributed Spark application?

314

What are the benefits of using Spark with Apache Mesos?

303

What are the common mistakes developers make when running Spark applications?

309

When running Spark applications, is it necessary to install Spark on all the nodes of YARN cluster?

345

What is the significance of Sliding Window operation?

322

Un-Answered Questions { Big Data }

Does rdd have schema?

339

What is a Record Reader in hadoop?

1015

What is the InputSplit in map reduce ?

1082

How we can change Replication factor when Data is on the fly?

1388

What does the following query do? Insert overwrite table employees partition (country, state) select ..., Se.cnty, se.st from staged_employees se;

964

Define the consistency levels for read operations in Cassandra?

What is flume instagram?

What does hadoop-env.sh do?

489

Can you explain apache ambari?

How many ways we can create rdd in spark?

309

Explian the Advantages of HBase?

191

What does serdes mean in apache kafka?

651

Who is a 'user' in HDFS?

941

What is the use of illustrate in pig?

566

What is ZooKeeper quorum?

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