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

Big Data Interview Questions

Questions Answers Views Company eMail

What are the barriers?

What is Zookeeper Cluster?

What is ZooKeeper Client?

What is org.apache.jute package?

What are the key elements in ZooKeeper Architecture?

What is the difference between the ZooKeeper ensemble and ZooKeeper quorum?

Explain the Constituents of Apache ZooKeeper Architecture?

How to Containerizing ZooKeeper With Docker?

Explain the Methods Of ZooKeeper class?

State about ZooKeeper WebUI?

What is ZooKeeper Atomic Broadcast (ZAB) protocol?

What is the Data model, and the hierarchical namespace?

Explain Zookeeper Queues?

What are the applications of Apache ZooKeeper?

Explain Zookeeper Leader election?

Un-Answered Questions { Big Data }

What is the local repository and where it is useful while using ambari environment?

What is Implicit Type conversion in Hive?

749

How does HDFS ensure Data Integrity of data blocks stored in HDFS?

What is the problem with the small file in Hadoop?

607

What is the function of mapreducer partitioner?

560

What do you know by storage and compute node?

641

What are ‘maps’ and ‘reduces’?

654

What is a checkpoint?

921

Why Mapper runs in heavy weight process and not in a thread in MapReduce?

590

Why HDFS stores data using commodity hardware despite the higher chance of failures?

What is difference between flume and sqoop?

183

Mention what are the main components of cassandra data model?

Why we use intwritable instead of int? Why we use longwritable instead of long?

436

Define fold() operation in Apache Spark?

283

How namenode handles data node failures?

497

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