Big Data Interview Questions
Questions Answers Views Company eMail

Is hive suitable to be used for oltp systems? Why?

486

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

670

Give some points of hive for hadoop ?

445

Write a query to insert a new column(new_col int) into a hiev table (htab) at a position before an existing column (x_col)

525

What is a metastore in hive?

436

What is the importance of driver in hive?

408

How can hive avoid mapreduce?

398

What are hive operators and its types?

442

when to choose “internal table” and “external table” in hive?

406

How do you specify the table creator name when creating a table in hive?

428

what is partitions in hive?

427

What do you mean by schema on read?

423

what does the shell commands “Capture” and “Consistency” determines?

80

how Cassandra delete Data?

83

what is Memtable in Cassandra?

87


Un-Answered Questions { Big Data }

What is difference between Column and Super Column?

60


Define “speculative execution” in hadoop?

239


What is commodity hardware?

393


CONCAT function in Hive with Example?

506


What do you understand by High availability?

59






What will apache driver do?

33


What does secondary name-node means?

240


Where is spark used?

191


What are spark stages?

204


Explain about the popular use cases of Apache Spark

340


What is the difference between a hadoop database and relational database?

234


Tell any two feature Flume?

64


Specify Cassandra’s importance on Facebook?

128


How to start a kafka server?

307


Explain Zookeeper Leader election?

5