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

Big Data Interview Questions

Questions Answers Views Company eMail

Elaborate on Identifiers?

124

What are keywords?

Explain the fundamental difference between Cassandra and Hadoop?

228

There seem to be certain management tools in Cassandra. What are they?

126

Specify Cassandra’s importance on Facebook?

155

Tunable consistency is supported by Cassandra. Explain.

Are Cassandra, Hadoop, Hbase and Cassandra are the same in nature? Specify.

Explain the term Cluster?

114

Explain what is logging in Cassandra?

What is HDFS?

Why HDFS?

How to Delete file from HDFS?

How to keep files in HDFS?

How is NFS different from HDFS?

Why is block size large in Hadoop?

Un-Answered Questions { Big Data }

What is Starvation scenario in spark streaming?

360

Explain fold() operation in spark?

323

Explain what do you understand by cassandra- cql collections?

What is kafka logs?

627

Why do fires spark?

316

What do you understand by node in cassandra?

Explain what you understand by speculative execution

676

Define yum?

What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?

494

Define lzo?

203

What is the distinction between apache driver and apache spark’s mllib?

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

773

What is the reason for creating a new metastore_db whenever Hive query is run from a different directory?

1038

What do you mean by replication factor?

Replication causes data redundancy then why is pursued in hdfs?

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