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 what is the row key?

146

Can the region server will be located on all datanodes?

316

What is the meaning of compaction in hbase?

156

Discuss how you can use filters in apache hbase

158

Explain jmx concerning hbse

168

What is a bloom filter?

156

Explain what is hbase?

146

hbase support syntax structure like sql. Yes or no?

190

What happens if you alter the block size of a column family on an already occupied database?

214

Define the term thrift

132

Explain what does hbase consists of?

153

Why to use hbase?

150

Explain what happens if you alter the block size of a column family on an already occupied database?

165

Explain totuple function?

551

Explain avrostorage function?

572

Un-Answered Questions { Big Data }

Explain what is heartbeat in hdfs?

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)

755

I have a relation r. How can I get the top 10 tuples from the relation r?

532

Define the use of Source Command in Cassandra?

What is the role of Consumer API?

476

Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?

564

What are the most common InputFormats in Hadoop?

550

What is a dstream in apache spark?

2019

Describe REVERSE function in Hive with example?

664

What problem does Apache Pig solve?

749

Define a daemon?

621

What are the different commands used to startup and shutdown Hadoop daemons?

478

Can Flume can distribute data to multiple destinations?

What do you understand by hive?

649

What happens if the block in HDFS is corrupted?

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