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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

Some of the most notable applications of Kafka?

562

Explain how message is consumed by consumer in Kafka?

560

What are Guarantees provided by Kafka?

552

Explain Apache Kafka Use Cases?

586

State one best feature of Kafka?

569

what is the benefits of Apache Kafka over the traditional technique?

1 1132

Is it possible to get the message offset after producing?

645

what is the maximum size of the message does Kafka server can receive?

575

What is the role of Connector API?

595

Compare Traditional queuing systems vs Apache Kafka?

574

how you can get exactly once messaging from Kafka during data production?

600

What are the types of System tools?

696

Why Should we use Apache Kafka Cluster?

632

Mention what happens if the preferred replica is not in the ISR?

601

Explain the term 'Topic Replication Factor'?

568

Un-Answered Questions { Hadoop }

How to perform the inter-cluster data copying work in HDFS?

What are the four essential parameters of a mapper?

708

What is namenode?

523

What types of costs are associated in creating index on hive tables?

883

What is Apache Spark Streaming?

347

Define a datanode?

692

On what all basis can you differentiate rdd, dataframe, and dataset?

327

What are the disadvantages of using Spark?

334

What is difference between map and flatmap?

308

Explain the general mapreduce algorithm

704

What are Prerequisites to learn Avro?

What are the main hdfs-site.xml properties?

Does cassandra support acid tractions?

How to optimize Hadoop MapReduce Job?

682

Does spark work with python 3?

313

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