Nuware Systems Data Engineer Interview Questions and Answers

Q1. 3rd largest salary from each department(window function)
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Q1. Explain process in adf
Ans. 
ADF stands for Azure Data Factory, a cloud-based data integration service that allows you to create, schedule, and manage data pipelines.
• ADF allows you to create data-driven workflows for orchestrating and automating data movement and data transformation.

• You can use ADF to ingest data from various sources, process and transform the data, and then publish the data to different destinations.

• ADF supports a wide range of d...read more
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Q1. Related to data warehouse
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Q1. Python, data warehouse, data modelling
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Q1. Join two tables in pyspark code and dataframe
Ans. 
Join two tables in PySpark code and DataFrame
• Create two DataFrames from the tables

• Specify the join condition using join() function

• Select the columns to be displayed using select() function

• Use show() function to display the result
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Q1. What is the best place you visisted in pune
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Q1. How much salary you are expectin herein the saama technoligies
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Q1. Questions about the tech skills you have
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Q1. Salary discussion .
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2 hr duration test it was. It had the topics like reasoning, number system. Technical section was also there which has sql questions

Q1. Based on my final year project. Some questions based the programming language I added in my resume and other questions asked on sql queries on joins, union, union all difference.
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Q2. Then HR round was there in which asked some behavioral questions and tested some decision making skills
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Q3. Tell me about your final year project is a common question that every interviewer ask for fresher
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Q4. What is inheritance and type of inheritance? if you mentioned c or Java as your skill
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Q5. Tell me about yourself?
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Q6. What are your hobbies?
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Q7. What is your salary expectation.
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Q8. Are you willing to relocate?
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Q9. Are you ready to sign agreement if there is any?
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Q10. Tell me about your family background
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Q11. Is there any for future studies
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Coding test was bad. they asked irrelevant things that were not related to the field

Q1. What is data engineering
Ans. 
Data engineering is the process of designing, building, and maintaining the infrastructure for data storage and processing.
• Data engineering involves creating and managing data pipelines

• It includes tasks such as data modeling, data integration, and data warehousing

• Data engineers work with big data technologies such as Hadoop, Spark, and NoSQL databases

• They also ensure data quality, security, and scalability

• Examples of d...read more
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Q2. What is resilient distributed database
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A resilient distributed database is a database that can continue to function even if some of its nodes fail.
• It is designed to be fault-tolerant and highly available.

• Data is distributed across multiple nodes to ensure redundancy.

• If one node fails, the database can continue to function using data from other nodes.

• Examples include Apache Cassandra, Riak, and HBase.
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