Hadoop General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop General Interview Questions

Questions Answers Views Company eMail

Give a brief overview of Hadoop history?

385

How Big is ‘Big Data’?

390

How can you set an arbitrary number of mappers to be created for a job in Hadoop?

415

How many job tracker processes can run on a single Hadoop cluster?

443

What are some of the characteristics of Hadoop framework?

404

Where are Hadoop’s configuration files located?

466

Can you give a detailed overview about the Big Data being generated by Facebook?

391

In hadoop_pid_dir, what does pid stands for?

474

What are the network requirements for hadoop?

448

What does hadoop-env.sh do?

404

Which are the three modes in which hadoop can be run?

415

Where is hadoop-env.sh file present?

446

Can we use windows for hadoop?

440

What are the hadoop configuration files at present?

428

Can we create a hadoop cluster from scratch?

396

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Un-Answered Questions { Hadoop General }

What is the best practice to deploy the secondary name node?

418

While starting hadoop services, datanode service is not running?

406

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

398

What is the number of default partitioner in hadoop?

406

Where are Hadoop’s configuration files located?

466

What are some typical functions of job tracker in hadoop?

391

Give examples of some companies that are using Hadoop structure?

394

Explain about Hadoop file system and processing framework?

386

What is partitioning?

427

Can hadoop handle streaming data?

427

What is Combiner in Hadoop?

496

Explain Hadoop Archives?

487

What webdav is in hadoop?

404

What is a combiner in hadoop?

480

List some use cases where classification machine learning algorithms can be used.

423

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