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

Big Data Interview Questions

Questions Answers Views Company eMail

What do you mean by logging in cassandra?

What do you mean by replication strategy?

How data or a file is written into hdfs?

What is a namenode in hadoop?

What is secondary namenode?

What do you mean by meta data in hdfs? List the files associated with metadata.

Explain the hdfs architecture and list the various hdfs daemons in hdfs cluster?

Can you modify the file present in hdfs?

Define data integrity?

What do you mean by the high availability of a namenode? How is it achieved?

Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?

Define hadoop archives?

What is secondary namenode? Is it a substitute or back up node for the namenode?

What is the command for archiving a group of files in hdfs.

Explain the hdfs architecture?

Un-Answered Questions { Big Data }

What do you understand by schemardd in apache spark rdd?

2180

What does the "USE" command in hive do?

420

What are Guarantees provided by Kafka?

297

Is spark a mapreduce?

201

What is the use of Bloom Filter in Cassandra?

How to invoke Command Line Interface?

What is the benefit of kafka?

274

What is client mode in spark?

195

What is ttl (time to live) in hbase?

125

How you can remove the element with a critical present in any other Rdd is Apache spark?

208

What are the key features of Apache Spark that you like?

256

What is meant by in-memory processing in Spark?

209

What are the functionalities of jobtracer?

231

Explain the various types of partitioners in cassandra?

Why is BlinkDB used?

218

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