NASSCOM Database Developer Interview Questions and Answers

Reasoning.. Puzzel solving etc

Q1. What is data structure?
Ans. 
Data structure is a way of organizing and storing data in a computer so that it can be accessed and manipulated efficiently.
• Data structure defines the relationship between data elements and the operations that can be performed on them.

• It helps in optimizing the use of memory and improving the efficiency of algorithms.

• Examples of data structures include arrays, linked lists, stacks, queues, trees, and graphs.
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Q2. Did you know how to work on hadoop?
Ans. 
Yes, I have experience working on Hadoop.
• I have worked on Hadoop for data processing and analysis.

• I am familiar with Hadoop's distributed file system (HDFS) and MapReduce framework.

• I have used Hadoop to handle large volumes of data and perform complex computations.

• I have experience with Hadoop ecosystem tools like Hive, Pig, and Spark.

• I have optimized Hadoop jobs for performance and scalability.

• I have worked on Hadoop ...read more
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Q3. Do you know about cluster?
Ans. 
Yes, a cluster is a group of servers or computers that work together to provide high availability and scalability.
• A cluster is used to distribute the workload and improve performance.

• It provides redundancy and fault tolerance by allowing one server to take over if another fails.

• Clusters can be used in various applications like database systems, web servers, and high-performance computing.

• Examples of cluster technologie...read more
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Q1. Where do you live in?
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Q2. How many members r there in your family?
Ans. 3.. My mom dad and me
Answered by Avishek Saha
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Q3. Are u able to relocate for tour job ?
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