Systems Plus Consultant Interview Questions and Answers

Q1. Interview based on your programming language , how good you know like java or python or scala
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Q2. Big data & Data science interview question like working of spark , Hive optimization of queries , what is graphx
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Q3. Explain your recent project in detail
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Q1. More deep dive in your expertise technologies like Spark DAG working explain
Ans. 
Spark DAG (Directed Acyclic Graph) represents the execution plan for Spark jobs, optimizing data processing tasks.
• A DAG is a graph structure that consists of nodes (operations) and edges (data flow) without cycles.

• In Spark, when an action (like count or collect) is called, it triggers the creation of a DAG.

• Each transformation (like map, filter) creates a new RDD, forming a lineage that Spark uses to optimize execution.

• ...read more
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Q2. How you do data validation in hive
Ans. 
Data validation in Hive involves using built-in functions and custom scripts to ensure data accuracy and consistency.
• Use built-in functions like IS NULL, IS NOT NULL, and COALESCE to check for missing or null values

• Use regular expressions and pattern matching to validate data formats

• Write custom scripts to perform more complex data validation tasks

• Perform data profiling to identify potential data quality issues

• Use data...read more
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Q1. Salary , why changing job etc..
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Q2. Your complete background of career
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Q1. SQL joins, window functions, scenario based questions on data cleaning, data processing
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Q2. What strategies can be employed for the optimization of ETL processes and Spark jobs?
Ans. 
Optimize ETL processes and Spark jobs through efficient design, resource management, and performance tuning.
• Use partitioning to improve data processing speed. For example, partitioning large datasets by date can speed up queries.

• Implement data caching in Spark to store intermediate results, reducing the need for repeated computations.

• Optimize data formats by using columnar storage formats like Parquet or ORC, which imp...read more
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Test of SQL, Tableau and other skills based on your resume on Skillate

Q1. SQL and other skills technical questions
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Q1. Manager round / 2nd technical round
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Q1. Can you describe your experience within the industry?
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Q2. What is workflow automation?
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Q1. Expected Ctc ,current ctc,experience etc,etc
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Q1. System knowledge ,they see if your experience is usable.It’s a long round but if you are skilled and experience d enough ,it will be a breeze
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Q1. BASIC JAVASCRIPT
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Q2. OBDX RELATED backend and front end
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Q1. Good knowledge on plsql, unix, java knowledge, linux
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