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 different types of Znodes?

981

How many instances of JobTracker can run on a Hadoop Cluser?

1022

What's the best way to copy files between HDFS clusters?

1358

Can Apache Kafka be used without Zookeeper?

1035

What is Your Cluster size ?

1439

What is the default block size in hdfs?

1040

What are active and passive "NameNodes"?

1465

It can be possible that a Job has 0 reducers?

965

What are combiners and its purpose?

931

On what basis Namenode will decide which datanode to write on?

1264

Can Hadoop be compared to NOSQL database like Cassandra?

910

What is a Secondary Namenode? Is it a substitute to the Namenode?

1032

what are relational operations in pig latin?

867

What is the difference between SQL and NoSQL?

1077

What are the additional benefits YARN brings in to Hadoop?

963

Un-Answered Questions { Big Data }

Doesn’t google have its very own version of dfs?

481

What is difference the between sqoop and distcp?

Can you explain spark streaming?

307

What are the various uses of explode hive?

678

How to create and manage a view in HCatalog?

Why Hadoop MapReduce?

665

What is TextInputFormat in Hadoop?

517

What is a rack?

419

What is a Secondary Namenode? Is it a substitute to the Namenode?

1032

Explain HCatReader?

What are the different types of UDF's in Java supported by Apache Pig?

1055

How can you manually partition the rdd?

301

How can you store the data in spark?

322

What is Hive Database?

701

explain the concept of RDD (Resilient Distributed Dataset). Also, state how you can create RDDs in Apache Spark.

411

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