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

Hadoop General Interview Questions

Questions Answers Views Company eMail

What do you understand by a closure in scala?

488

Can you explain textinformat?

497

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

463

How many daemon processes run on a hadoop cluster?

457

Which scala library is used for functional programming?

465

Suppose hadoop spawned 100 tasks for a job and one of the tasks failed. What will hadoop do?

482

Which operating system(s) are supported for production hadoop deployment?

428

Can you explain speculative execution?

418

How do you overwrite replication factor?

451

Can you explain logistic regression?

413

Can you explain combiner?

437

List of some best tools that can be useful for data-analysis?

431

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

454

What are the tools used in big data?

434

Can you explain indexing?

414

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Un-Answered Questions { Hadoop General }

Tell me some major benefits of Hadoop?

408

Explain the usage of Context Object?

476

How does job tracker schedule a job for the task tracker?

454

Which scala library is used for functional programming?

465

How is the splitting of file invoked in Hadoop framework?

513

Explain the Single point of Failure in Hadoop?

477

What does rack awareness algorithm means and why is it utilized as a part of hadoop?

433

What are the configuration files in Hadoop?

541

Whats the default port that jobtrackers listens ?

479

What is difference between secondary namenode, checkpoint namenode & backupnode?

469

How can one check whether NameNode is working or not?

542

What is the most widely recognized info formats characterized in hadoop?

431

What is the use of recordreader in hadoop?

421

What is Balancer in Hadoop?

472

What is the use of context object?

466

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