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

Big Data Interview Questions

Questions Answers Views Company eMail

Define partitions in apache spark.

2194

Is there an api for implementing graphs in spark?

2048

Explain accumulators in apache spark.

2097

What file systems does spark support?

1802

What is a dstream in apache spark?

2049

Explain the concept of resilient distributed dataset (rdd).

2072

What do you understand by schemardd in apache spark rdd?

2292

What are roles in cqlsh?

what is gossip protocol?

What are snapshots and how do you create one in cassandra?

What is the use of coordinator node in read?

Explain the different logging levels in cassandra.

What are clusters in cassandra?

What is network topology strategy?

How is a keyspace created in cassandra? & What are the parameters used?

Un-Answered Questions { Big Data }

What is the primary purpose of the pig in the hadoop architecture?

2769

How can we drop a table in HCatalog?

What is the use of checkpoints in spark?

326

Explain data versioning?

180

What is meant by Transformation? Give some examples.

325

What is driver memory and executor memory in spark?

348

What Are Good Use Cases For Impala As Opposed To Hive Or MapReduce?

654

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1057

What is the syntax to create keyspace in Cassandra?

128

What is Hive Present Version ?

1136

Explain first() operation in Apache Spark RDD?

403

What are the different ways of executing Pig script?

842

What purpose would an engineer use spark?

422

Explain Spark leftOuterJoin() and rightOuterJoin() operation?

313

What are the differences between a node, a cluster, and datacenter in Cassandra?

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