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.

2165

Is there an api for implementing graphs in spark?

2016

Explain accumulators in apache spark.

2061

What file systems does spark support?

1770

What is a dstream in apache spark?

2022

Explain the concept of resilient distributed dataset (rdd).

2034

What do you understand by schemardd in apache spark rdd?

2265

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 amazon spark?

261

What is rdd lineage graph? How is it useful in achieving fault tolerance?

297

How to restart NameNode or all the daemons in Hadoop HDFS?

What is data skew in spark?

280

Where sorting is done on mapper node or reducer node in MapReduce?

628

What type of data hadoop can handle ?

386

How data or a file is written into hdfs?

If datanodes increase, then do we need to upgrade namenode?

428

Which is the best spark certification?

273

Define role of velocity in big data?

570

What are Pig Execution modes?

561

What is partitioning in MapReduce?

674

What is a Consumer Group?

569

How is the processing of streaming data achieved in Apache Spark? Explain.

271

What do you understand by compute and storage nodes?

652

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