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?

149

Can the region server will be located on all datanodes?

316

What is the meaning of compaction in hbase?

164

Discuss how you can use filters in apache hbase

162

Explain jmx concerning hbse

174

What is a bloom filter?

162

Explain what is hbase?

150

hbase support syntax structure like sql. Yes or no?

200

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

218

Define the term thrift

134

Explain what does hbase consists of?

159

Why to use hbase?

154

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

168

Explain totuple function?

598

Explain avrostorage function?

626

Un-Answered Questions { Big Data }

Why do we need hadoop for big data analytics?

431

What are the tools that are used in ambari monitoring?

Explain the core components of hadoop?

661

What are secondary indexes?

If data is present in HDFS and RF is defined, then how can we change Replication Factor?

What does connector api in kafka?

505

explain Metadata in Namenode?

917

What is the default maximum dynamic partition that can be created by a mapper reducer? How can you change it?

716

Explain the concept of cassandra data model?

114

Does Spark provide the storage layer too?

278

What is the difference between the ZooKeeper ensemble and ZooKeeper quorum?

Explain jsonloader, jsonstorage functions in pig?

583

What does the mapred.job.tracker command do?

425

What is Identity reducer?

520

Explain what is “map” and what is "reducer" in hadoop?

642

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