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 is a Combiner?

741

Is there any difference between FileSink and FileRollSink?

Why can we not create directory /user/dataflair/inpdata001 when name node is in safe mode?

449

What is the difference between sqoop and hive?

What is heartbeat in hdfs?

646

Is hadoop open source?

718

What is PageRank in Spark?

272

How to Administering Hadoop?

902

What are the features of Standalone (local) mode?

596

Why is Hive not suitable for OLTP systems?

762

What is the purpose of ‘dump’ keyword in Pig?

626

How many types of nosql databases?

What is streaming access?

495

Do we need to give a password, even if the key is added in ssh?

727

What is the difference between SQL and NoSQL?

1077

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