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

Big Data Interview Questions

Questions Answers Views Company eMail

Give some important features of SPM?

What is prepare() method in Cassandra?

What is Cassandra?

What are the differences between a node, a cluster, and datacenter in Cassandra?

Describe SPM?

What are the different CQL data definition commands in Cassandra?

Describe DataStaxOpsCenter?

174

How Cassandra stores data?

What is the usage of "void close()" method?

What are the Advantages of using Cassandra ?

Define Cluster?

107

How does Cassandra delete data?

How many types of NoSQL databases? Give some examples.

187

Define replication factor?

What is session in Cassandra?

161

Un-Answered Questions { Big Data }

How is RDD in Apache Spark different from Distributed Storage Management?

344

What is dataframe api?

324

List Hadoop’s three configuration files?

427

What is throughput? How does hdfs provides good throughput?

When do you have to avoid secondary indexes?

What load do concurrent queries produce on the namenode?

Why was spark created?

275

What is the significance of cluster class in Cassandra?

What is the FlatMap Transformation in Apache Spark RDD?

294

Explain leftOuterJoin() and rightOuterJoin() operation in Apache Spark?

393

Are multiline comments supported in Hive?

3291

Can you explain difference between apache mahout and apache spark’s mllib?

How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?

634

What are the relational operators available related to combining and splitting in pig language?

719

What is an identity mapper and identity reducer?

616

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