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?

560

Explain how message is consumed by consumer in Kafka?

558

What are Guarantees provided by Kafka?

550

Explain Apache Kafka Use Cases?

584

State one best feature of Kafka?

567

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

1 1129

Is it possible to get the message offset after producing?

642

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

571

What is the role of Connector API?

592

Compare Traditional queuing systems vs Apache Kafka?

570

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

598

What are the types of System tools?

694

Why Should we use Apache Kafka Cluster?

630

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

598

Explain the term 'Topic Replication Factor'?

566

Un-Answered Questions { Hadoop }

Is hadoop the future?

694

Is ambari python clients can be used to make the good use of ambari api’s?

What is the difference between rdd and dataframe?

349

How to create Users in hadoop HDFS?

What do you understand by worker node?

294

What does the Spark Engine do?

333

Does Spark provide the storage layer too?

295

Clarify how hive de-serialize and serialize the information?

689

How many types of NoSQL databases are there?

145

Define Cassandra?

Which code do we use to open the connection in Hbase?

191

How do ‘map’ and ‘reduce’ work?

707

What are the fundamental key structures of HBase?

211

Does the HDFS go wrong? If so, how?

what is Cassandra- CQL collections?

107

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