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

What is decorating filters?

305

What is use of tools command?

200

Explain about hlog and wal in hbase.

310

Compare hbase & cassandra?

167

Define standalone mode in hbase?

147

Explain how does hbase actually delete a row?

171

What is the reason of using hbase?

194

Which command is used to run hbase shell?

176

Define the difference between hive and hbase?

172

Which one would you recommend for hbase table design approach – tall-narrow or flat wide?

335

Why hbase is a schema-less database?

184

What is the use of ycsb?

179

what are the key components of hbase?

177

name few other popular column oriented databases like hbase.

208

What is hfile ?

297

Un-Answered Questions { Hadoop }

How Hive organize the data?

774

What is the role of the namenode?

495

Who is intended audience to learn avro?

how does hdfs ensure data integrity of data blocks stored in hadoop hdfs?

Is there any point of learning mapreduce, then?

696

Is hadoop still in demand?

496

Explain InputSplit in Hadoop?

502

How can a developer utilize hive?

731

What is compaction in hbase?

173

is there a standard procedure to deploy hadoop?

460

RLIKE in Hive?

840

Can we change Replication Factor on a live cluster?

State use cases of impala?

In the Producer, when does QueueFullException occur?

589

Explain Spark Driver?

353

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