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

Big Data Interview Questions

Questions Answers Views Company eMail

what is JobTracker in Hadoop? What are the actions followed by Hadoop?

768

Is it possible to split 100 lines of input as a single split in MapReduce?

963

What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?

875

Is it possible to rename the output file?

789

how JobTracker schedules a task ?

847

what is NameNode in Hadoop?

877

what does the conf.setMapper Class do ?

814

how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?

781

What is SequenceFileInputFormat?

814

What is a "map" in Hadoop?

792

What is a "reducer" in Hadoop?

869

what is Speculative Execution?

831

Explain JobConf in MapReduce.

809

What is OutputCommitter?

808

How is reporting controlled in hadoop?

781

Un-Answered Questions { Big Data }

What is the Cassandra Coefficient ?

Is spark better than hadoop?

313

Explain transformation and action in RDD in Apache Spark?

295

Why hbase is a schema-less database?

182

What is HDFS?

What are basic steps to be performed while working with big data?

561

What is the process of changing the split size if there is limited storage space on Commodity Hardware?

707

explaine wal in hbase?

173

In Hive, how can you enable buckets?

738

Who invented hadoop?

684

Define the common faults of the developer while using apache spark?

289

What is the command to start and stop the Spark in an interactive shell?

313

What is DStream in Apache Spark Streaming?

319

What are the Features of Hadoop?

511

What is the maximum size of string data type supported by hive? Mention the hive support binary formats.

664

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