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?

104

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?

192

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?

148

Un-Answered Questions { Big Data }

What is the default spark executor memory?

292

What are the benefits of block transfer?

1038

What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?

645

Explain the concept of compaction in Cassandra?

What is Apache Spark?

390

Explain different queries performed by apache tajo?

What is worker node in Apache Spark cluster?

315

Can we do real-time processing using spark sql?

322

Suppose that your data is stored in collections, for instance, some binary data, message data or metadata is all keyed on the same value. Will you use HBase for this?

162

What are the purposes of using Ambari shell?

What is the difference between hbase and hdfs?

178

How do I try impala out?

Define ttl in hbase?

168

What is CQL?

What are broker configs?

574

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