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

Big Data Interview Questions

Questions Answers Views Company eMail

Why is Kafka technology significant to use?

485

Explain the role of the offset?

500

What is the process for starting a Kafka server?

551

What can you do with Kafka?

505

What roles do Replicas and the ISR play?

506

What is the role of the ZooKeeper in Kafka?

495

What are the types of traditional method of message transfer?

559

Explain the role of the Kafka Producer API?

489

In the Producer, when does QueueFullException occur?

513

Why are Replications critical in Kafka?

528

What does ISR stand in Kafka environment?

613

What are consumers or users?

570

What is the main difference between Kafka and Flume?

634

Is it possible to use Kafka without ZooKeeper?

613

What is the purpose of retention period in Kafka cluster?

620

Un-Answered Questions { Big Data }

What are the components of a Hive query processor?

684

How will you calculate the number of executors required to do real-time processing using Apache Spark? What factors need to be considered for deciding on the number of nodes for real-time processing?

264

How the HDFS Blocks are replicated?

900

How hadoop mapreduce works?

591

Explain how RDDs work with Scala in Spark

324

What are the uses of explode hive?

676

What are the usage of different consistency levels for write operations ?

What are the exact differences between reduce and fold operation in Spark?

431

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

432

What is non-dfs used in hdfs web console

What is the difference between hbase and hadoop/hdfs?

163

Compare Hadoop and Spark?

304

Name the components of spark ecosystem.

256

Explain about ACID transactions in Hive?

682

What do you mean by ss table and explain how it is different from the other original tables?

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