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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?

614

Explain what is storage and compute nodes?

512

Explain how jobtracker schedules a task?

465

Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

439

What happens in text format?

436

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

445

Explain what is a task tracker in hadoop?

452

Explain what is speculative execution?

423

Explain what happens in text format?

573

Mention what is distributed cache in hadoop?

440

Explain how can you debug hadoop code?

466

Explain how can you check whether namenode is working beside using the jps command?

431

Explain what is webdav in hadoop?

508

Mention what job does the conf class do?

420

For using hadoop list the network requirements?

471

Un-Answered Questions { Big Data }

Is kafka open source?

502

What are the downsides of Spark?

354

What is the difference between a MapReduce InputSplit and HDFS block?

752

Why Do We Need Apache Pig?

641

How do you do a file system check in hdfs?

Mention what are the main configuration parameters that user need to specify to run mapreduce job?

731

What does ISR stand in Kafka environment?

658

Define durable writes?

What is the difference between Cassandra and Hadoop ?

What does the file hadoop-metrics.properties do?

486

Define Thrift?

268

Why do we need a password-less ssh in fully distributed environment?

709

Why spark is faster than hive?

303

Which database the sqoop metastore runs on?

What are the different methods to run Spark over Apache Hadoop?

718

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