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

Big Data Interview Questions

Questions Answers Views Company eMail

Can you explain data versioning?

168

How will you design or modify schema in hbase programmatically?

155

What happens when you issue a delete command in hbase?

164

What is a bloom filter and how does it help in searching rows?

167

Hbase blocksize is configured on which level?

166

When would you use hbase?

178

What are the filters are available in apache hbase?

153

How do we back up a hbase cluster?

134

What are the data manipulation commands of hbase?

196

Explain data versioning?

172

While reading data from hbase, from which three places data will be reconciled before returning the value?

196

Which command is used to show the current hbase user?

192

How does bloom filter help in searching rows?

215

Explain the data model of hbase.

160

How hbase handles the write failure?

202

Un-Answered Questions { Big Data }

What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?

1071

Why do we need spark?

266

What do you think about the speculative execution?

404

What is pagerank in graphx?

270

Can we say a COGROUP is a group of more than 1 data set?

523

Is spark an etl?

280

Mention what is the number of default partitioner in Hadoop?

647

If a data Node is full how it's identified?

889

Who developed Apache Avro?

What do you understand by node in cassandra?

Why should we use presto?

What is a primary key? And what are it’s different types?

How would an hadoop administrator deploy various components of hadoop in production?

398

What are the ways to create RDDs in Apache Spark? Explain.

284

What is the maximum size of string data type supported by hive? Mention the hive support binary formats.

605

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