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 do you understand by Filters in HBase?

147

Explain the various table design approaches in HBase?

138

What is table in hbase?

208

Which method is used to access HFile directly without using HBase?

222

Which type of data HBase can store?

159

How to delete the table with the HBase shell?

153

What services run after running hbase job?

172

What is the use of truncate command?

193

Explain MemStore?

182

What is the best practice on deciding the number of column families for HBase table?

173

Which command do we use to run HBase Shell?

199

Define compaction in HBase?

168

Difference between hbase and rdbms?

181

What do you understand by compaction?

160

Does HBase support SQL like syntax?

157

Un-Answered Questions { Hadoop }

Explain the operations of Apache Spark RDD?

301

How do we represent data in Spark?

372

In what ways sparksession different from sparkcontext?

360

In MapReduce how to change the name of the output file from part-r-00000?

667

What are the hadoop configuration files at present?

523

How can we see all the hosts that are available in Ambari?

How to resolve IOException: Cannot create directory

1072

Is spark better than hadoop?

338

How do I stop flume agent?

What are the two main parts of the hadoop framework?

702

Mention when to use Map reduce mode?

677

What is CTE Table in Hive?

791

What all tasks you can perform for managing services using Ambari service tab?

Explain the features of pseudo mode?

754

How can we change the split size if our commodity hardware has less storage space?

711

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