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.

2176

Is there an api for implementing graphs in spark?

2036

Explain accumulators in apache spark.

2074

What file systems does spark support?

1787

What is a dstream in apache spark?

2031

Explain the concept of resilient distributed dataset (rdd).

2050

What do you understand by schemardd in apache spark rdd?

2279

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 }

How tables are managed in apache tajo?

UPPER or UCASE function in Hive with example?

800

Mention how can you stop a partition form being queried?

1115

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

449

Do we require two servers for the namenode and the datanodes?

527

What are the most memory-intensive operations?

Is there a dual table?

What is transformation in spark?

321

What are the barriers?

Does spark sql use hive?

273

What is partitioning in MapReduce?

717

List out some key features of apache cassandra?

Why scala is used in spark?

328

Explain the hdfs architecture?

Explain what are the various types of Transformation on DStream?

282

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