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 in which directory hadoop is installed?

236

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

227

Explain the difference between an inputsplit and a block?

218

What is the use of cloudera?

226

Can you explain edge nodes in hadoop?

241

Explain some important features of hadoop?

251

Why do we need hadoop for big data analytics?

250

What are the important modes of hadoop?

236

Can you explain the common input formats in hadoop?

249

Explain edge nodes in hadoop?

242

What are the important features of hadoop?

241

Explain the common input formats in hadoop?

236

Can hadoop replace relational database?

233

Which database is used in hadoop?

228

How does hadoop achieve fault tolerance?

218

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Un-Answered Questions { Hadoop General }

Do we need to place 2nd and 3rd data in rack 2 only?

265

What is the NameNode port number?

223

While starting hadoop services, datanode service is not running?

240

Mention what is the difference between an rdbms and hadoop?

237

How job tracker schedules an assignment?

221

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

269

Can we deploye job tracker other than name node?

400

What is the default replication factor and how will you change it?

247

What are the Features of Hadoop?

233

How many datanodes can run on a single Hadoop cluster?

240

What does secondary name-node means?

234

What are the four modules that make up the Apache Hadoop framework?

262

Can you explain indexing?

228

Define “speculative execution” in hadoop?

233

Is Namenode machine same as DataNode machine as in terms of hardware in Hadoop?

245

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