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

Big Data Interview Questions

Questions Answers Views Company eMail

Define NoSQL Database?

What Platforms Cassandra runs on?

Give some advantages of Cassandra?

What is the use of “void close()” method?

What are the collection data types provided by CQL?

What is the use of “ResultSet execute(Statement statement)” method?

What do you mean by consistency in Cassandra?

186

Give the data storage units in Cassandra?

What is data replication in Cassandra?

When can you use ALTER KEYSPACE?

What is the concept of SuperColumn in Cassandra?

How many types of tunable consistency are supported in Cassandra?

Mention what are the values stored in the Cassandra Column?

What do you understand by Consistency in Cassandra?

How many types of NoSQL databases are there?

143

Un-Answered Questions { Big Data }

Define Partition in Apache Spark?

312

How many times combiner is called on a mapper node in Hadoop?

642

What is the use of coordinator node in read?

What main configuration parameters are specified in mapreduce?

674

what is Memtable in Cassandra?

109

Mention what is the maximum size of the message does kafka server can receive?

535

Mention the salient features of apache tajo ?

What is a DStream?

329

What is the best hardware configuration to run Hadoop?

1624

Explain HCatLoader APIs?

As part of optimizing the queries in hive, what should be the order of table size in a join query?

697

What are the main components of a Hadoop Application?

1038

What are the main features of SPM in Cassandra?

How does cassandra perform read operation?

What exactly is hadoop?

691

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