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 are the steps involved in decommissioning removing

697

What is the process to change the files at arbitrary locations in HDFS?

1125

What is difference between split and block in hadoop?

1082

How many JVMs run on a slave node?

647

What is a block and block scanner in HDFS?

707

What is compute and Storage nodes?

706

how would you modify that solution to only count the number of unique words in all the documents?

714

How can you overwrite the replication factors in HDFS?

947

What are the modules that constitute the Apache Hadoop 2.0 framework?

690

Knox and Hadoop Development Tools?

650

In which location Name Node stores its Metadata and why?

1045

Is a job split into maps?

719

What are different hdfs dfs shell commands to perform copy operation?

794

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

645

How many filters are available in HBase?

336

Un-Answered Questions { Big Data }

what does the shell commands “Capture” and “Consistency” determines?

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

What are the main components of MapReduce Job?

419

How Cassandra stores data?

What are partitions in cassandra?

What is hbase fsck?

155

What does it indicate if replica stays out of ISR for a long time?

456

Why are Replications critical in Kafka?

311

Is it necessary to know java to learn hadoop?

372

Can you define what is Event Serializer in Flume?

Can we change Replication Factor on a live cluster?

what is composite type in cassandra?

Define Partitions?

192

What a task tracker is in hadoop?

241

What does the high availability of a name-node means? How is it accomplished?

230

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