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

Big Data Interview Questions

Questions Answers Views Company eMail

List some commonly used Machine Learning Algorithm Apache Spark?

186

What is the command to start and stop the Spark in an interactive shell?

207

List out the ways of creating RDD in Apache Spark?

192

What are the various advantages of DataFrame over RDD in Apache Spark?

193

What is flatmap in apache spark?

205

What is the standalone mode in spark cluster?

164

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

190

In what ways sparksession different from sparkcontext?

238

Explain fold() operation in spark?

200

Define sparkcontext in apache spark?

190

List out the various advantages of dataframe over rdd in apache spark?

193

What is map in apache spark?

184

Write the command to start and stop the spark in an interactive shell?

187

Define various running modes of apache spark?

190

What are the ways to run spark over hadoop?

182

Un-Answered Questions { Big Data }

Explain what is Cassandra-Cqlsh?

Is spark part of hadoop ecosystem?

200

What is Reducer in Hadoop?

250

Define the level of parallelism and its need in spark streaming?

233

What are some alternatives to apache kafka?

286

What happen if number of reducer is set to 0 in Hadoop?

241

Define SSTable?

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

497

What are the different features of Cassandra?

Can we submit the mapreduce job from slave node?

840

What is the future of Big Data trend?

313

What is the meaning of the term "non-DFS used" in Hadoop web-console?

940

What is application master in spark?

181

Define NoSQL Database?

What is the difference between a Hadoop and Relational Database and Nosql?

716

For More Un-Answered { Big Data } Questions Click Here