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

Hadoop General Interview Questions

Questions Answers Views Company eMail

Explain the key benefits of using storm for real time processing?

298

What is the logistic regression?

301

Define data cleansing?

278

What are the port numbers of namenode?

289

How can we create a hadoop cluster from scratch?

290

What are the port numbers of task tracker?

325

How can you native libraries be included in yarn jobs?

313

Name the files which are used by the startup and shutdown commands?

1 603

Define a record reader?

290

What is the job tracker role in hadoop?

289

Explain how do you overwrite replication factor?

314

Explain how can we check whether namenode is working or not?

373

Define a udf?

300

Define a sequence file in hadoop?

395

Name the operating system(s) which are supported for production hadoop deployment?

302

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Un-Answered Questions { Hadoop General }

How many daemon processes run on a hadoop cluster?

298

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

295

Can you explain textinformat?

345

Why does one remove or add nodes in a Hadoop cluster frequently?

488

What is the number of default partitioner in hadoop?

318

What is the purpose of RecordReader in hadoop?

323

What are the common types of NOSQL data bases ?

300

Explain what is namenode in hadoop?

307

Can you define udf?

308

Define data cleansing?

278

Where is hadoop-env.sh file present?

323

Explain map-only job?

344

What is KeyValueTextInputFormat in Hadoop?

333

Why do we need hadoop for big data analytics?

317

What are the different commands used to startup and shutdown Hadoop daemons?

324

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