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

Big Data Interview Questions

Questions Answers Views Company eMail

Define column families?

127

Which code is used to open a connection in hbase?

220

What is the role of the offset.

296

What is the role of the kafka producer api.

312

Explain the main difference between kafka and flume?

319

Explain what is kafka?

300

Explain what is the role of the zookeeper?

279

What are the various components in kafka.

316

Explain the process for starting a kafka server?

296

Define partitioning key?

291

Explain what is a consumer group?

307

Explain why are replications critical in kafka?

306

Mention what is data cleansing?

232

What is a udf?

222

What is a record reader?

224

Un-Answered Questions { Big Data }

What is the difference between structured and unstructured big data?

208

How we can check hadoop sqoop installed or not in a system?

Compare MapReduce and Spark?

188

Can flume provide 100% reliability to the data flow?

What is coalesce in spark?

185

Differentiate between Hadoop MapReduce and Pig?

412

What does jps command do in Hadoop?

303

What are spark jobs?

186

Name some companies that are already using Spark Streaming?

168

What happens to a namenode, when job tracker is down?

413

What is spark pipeline?

198

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

262

What is simple strategy?

Can you explain textinformat?

247

Can you use Spark to access and analyse data stored in Cassandra databases?

272

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