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

Big Data Interview Questions

Questions Answers Views Company eMail

On what basis name node distribute blocks across the data nodes in HDFS?

Why is Reading done in parallel and writing is not in HDFS?

Can multiple clients write into an HDFS file concurrently in hadoop?

How to create Users in hadoop HDFS?

How to transfer data from Hive to HDFS?

Why HDFS stores data using commodity hardware despite the higher chance of failures in hadoop?

What is Hadoop Distributed File System- HDFS?

What is throughput in HDFS?

How is hadoop related to the big data? Describe its components?

495

What are 5 vs of big data ?

537

Connection between hadoop and big data?

556

Define big data?

562

What is data processing in big data?

687

Explain the five vs of big data?

548

Define role of variety in big data?

551

Un-Answered Questions { Big Data }

Explain the benefits of block transfer?

823

Explain REPEAT function in Hive with example?

802

What are the disadvantages of using Apache Spark over Hadoop MapReduce?

456

Why is sqoop is used?

How do I try impala out?

Do we need to place 2nd and 3rd data in rack 2 only?

443

Define primary key in Apache Cassandra?

Why do we need hdfs?

What operations does rdd support?

278

What do you mean by cassandra-cqlsh?

Which one is default?

483

Which is better hadoop or spark?

290

Explain the terms Spark Partitions and Partitioners?

303

What is difference between dataset and dataframe?

387

How does Apache Spark handles accumulated Metadata?

348

For More Un-Answered { Big Data } Questions Click Here