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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

Is spark secure?

283

What is executor memory and driver memory in spark?

286

What is the point of apache spark?

284

What is rdd map?

325

What is faster than apache spark?

283

What is spark training?

279

How many ways we can create rdd in spark?

294

How tasks are created in spark?

290

Is apache spark a tool?

270

What is difference between spark and mapreduce?

272

Who created spark?

287

How is spark fault tolerance?

399

What is cluster in apache spark?

318

How many ways we can create rdd?

278

What does repartition do in spark?

328

Un-Answered Questions { Hadoop }

What is Kundera in Cassandra?

Explain the use of tasktracker in the hadoop cluster?

633

Can flume provide 100% reliability to the data flow?

Give the sqoop command to see the content of the job named myjob?

State one best feature of Kafka?

516

What are the key segments of hive architecture?

673

Can Flume can distribute data to multiple destinations?

Is spark part of hadoop?

276

Can you give us some more details about ssh communication between masters and the slaves?

703

Can hadoop replace relational database?

421

Why is sqoop is used?

If you run hive as a server, what are the available mechanism for connecting it from application?

893

What do slaves consist of?

667

What is the importance of dfs.namenode.name.dir in HDFS?

Explain the repartition() operation in Spark?

289

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