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

Explain what you understand by speculative execution

612

Explain combiners.

639

when do reducers play their role in a mapreduce task?

620

In mapreduce what is a scarce system resource? Explain?

675

What do you understand by mapreduce?

654

Explain how mapreduce works.

621

What is an input reader in reference to mapreduce?

628

How is mapreduce related to cloud computing?

665

Define the purpose of the partition function in mapreduce framework

670

What are the various input and output types supported by mapreduce?

630

Explain task granularity

657

Explain the general mapreduce algorithm

653

What is cassandra database used for?

List out some key features of apache cassandra?

What do you understand by bloom filter in cassandra?

Un-Answered Questions { Hadoop }

How can you connect an application

1032

What is the work of hive/hcatalog?

752

What are the features of kafka?

544

What is Yum?

What is the use of binstorage?

572

What is the logistic regression?

441

Explain what are the tools used in Big Data?

124

What a task tracker is in hadoop?

438

What is Importance of Java in Apache Kafka?

552

What is the heartbeat used for?

1046

What are the other components of ambari that are important for automation and integration?

What are 4 v's of big data?

296

What are different logging levels in cassandra?

Describe what happens to a mapreduce job from submission to output?

667

Define standalone mode in hbase?

140

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