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

Hadoop Interview Questions

Questions Answers Views Company eMail

Can you list some useful zookeeper tools?

What are barriers?

How hbase uses zookeeper?

What is a bookkeeper client in bookkeeper?

What is closing out ledgers?

Why not just use zookeeper for everything?

What happens to zk sessions while the cluster is down?

What are the prime features of apache zookeeper?

Can I run an ensemble cluster behind a load balancer?

What is metadata storage service in bookkeeper?

What are the options-process for upgrading zookeeper?

Is there an easy way to expire a session for testing?

What are producer-consumer queues?

What is a bookie in bookkeeper?

Describe how hbase uses zookeeper?

Un-Answered Questions { Hadoop }

What combiners are and when you should use a combiner in a mapreduce job?

563

What is the procedure to create users in HDFS and how to allocate Quota to them?

What are the purposes of using Ambari shell?

What do you understand by the term snitch in cassandra? Give some example.

What happens to job tracker when namenode is down?

640

Explain what is jobtracker in hadoop? What are the actions followed by hadoop?

376

What are partitions and tokens in cassandra?

Is spark part of hadoop ecosystem?

283

How do you set up a spark?

256

Specify the different methods of hive?

678

What is the port number for NameNode

800

What are the different ways of representing data in Spark?

251

Define Partitions?

299

Why we use BloomMapFile?

566

How does NameNode tackle DataNode failures?

1109

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