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

How many operational commands in hbase?

167

why use hcolumndescriptor class?

153

What is the row key?

157

Tell me about the types of hbase operations?

175

How does hbase actually delete a row?

192

Name the filter which accepts the page size as the parameter in hbase?

184

Explain why to use hbase?

157

Mention the difference between hbase and relational database?

162

Mention what are the three types of tombstone markers in hbase?

223

Mention what are the key components of hbase?

177

Explain what is the row key?

149

Can the region server will be located on all datanodes?

316

What is the meaning of compaction in hbase?

167

Discuss how you can use filters in apache hbase

162

Explain jmx concerning hbse

174

Un-Answered Questions { Hadoop }

Did edmond berger invent the spark plug?

377

What are the languages supported by apache spark and which is the most popular one?

1705

In which scenario Pig is better fit than MapReduce?

835

What is the difference between hive and spark?

312

what is the difference between order by and sort by in Hive?

703

How is RDD in Spark different from Distributed Storage Management?

380

State some command line options?

What are the different pig data types?

746

What do you understand by Filters in HBase?

143

How many types of NoSQL databases are there?

143

What are the functionalities of jobtracer?

409

List out the some common problems faced by data analyst?

410

State about ZooKeeper WebUI?

What are the key features of HDFS?

Can you explain indexing?

414

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