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

Big Data Interview Questions

Questions Answers Views Company eMail

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

141

What are the main key structures of hbase?

167

What is the use of hbase hmaster?

149

Which technique can you use in hbase to access hfile directly without the help of hbase?

173

Explain what is wal and hlog in hbase?

312

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

Un-Answered Questions { Big Data }

Explain about the popular use cases of Apache Spark

428

Who is intended audience to learn HCatalog?

What is the difference between SQL and NoSQL?

1077

Clarify how hive de-serialize and serialize the information?

645

How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?

728

Highlight the difference between group and Cogroup operators in Pig?

859

How is anti-entropy associated with merkel tree?

What are the all tasks we can perform for managing services using the ambari service tab?

What is REST?

247

What port does spark use?

317

What is difference between spark and kafka?

297

You have a file personal_data.txt in the HDFS directory with 100 records. You want to see only the first 5 records from the employee.txt file. How will you do this?

795

Mention the common features in Pig and Hive?

917

What is a Hive variable? What for we use it?

807

What types of costs are associated with creating the index on hive tables?

1016

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