Cognizant ETL Test Engineer Interview Questions and Answers

Q1. They will ask about data warehousing concepts and etl concepts , about ur project transformation used in ur project, When it comes to SQL general basic queries...
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Q1. Explain project architecture?
Ans. 
Project architecture refers to the overall structure of a software project, including components, modules, and their interactions.
• Project architecture defines how different components of a software project are organized and interact with each other.

• It includes the high-level design of the system, such as the database structure, data flow, and integration points.

• Project architecture also involves decisions on technologi...read more
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Q2. Explain challenges you faced in etl testing?
Ans. 
Challenges in ETL testing include data quality issues, complex transformations, and handling large volumes of data.
• Data quality issues such as missing or incorrect data can impact testing results

• Complex transformations can be difficult to validate and may lead to errors in the ETL process

• Handling large volumes of data can slow down testing processes and require efficient testing strategies
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Q3. What are roles and responsibilities?
Ans. 
Roles and responsibilities refer to the tasks and duties assigned to an individual within a specific job or position.
• Roles define the position or job title of an individual within an organization.

• Responsibilities outline the specific tasks, duties, and expectations associated with that role.

• Roles and responsibilities help clarify expectations, define boundaries, and ensure accountability.

• Examples include testing data e...read more
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Q4. How to find duplicate values in python?
Ans. 
Use a dictionary to find duplicate values in an array of strings in Python.
• Create an empty dictionary to store the count of each string in the array.

• Iterate through the array and for each string, check if it exists in the dictionary. If it does, increment the count. If not, add it to the dictionary with a count of 1.

• After iterating through the array, check the dictionary for any strings with a count greater than 1. The
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Q1. Why atos? Coding skills required
Ans. 
Atos is a leading global IT services company with a strong focus on automation and coding skills.
• Atos is a well-established global IT services company known for its expertise in automation and coding.

• They have a strong reputation for delivering innovative solutions to clients using cutting-edge technologies.

• Working at Atos will provide opportunities to enhance coding skills and work on challenging automation projects.

• A...read more
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General queries from lead code

Q1. Selenium interview questions
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Q1. Salary Discussion
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Q1. Domain knowledge of insurance
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Q2. Testcase scenarios, life cycle of software testing
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Q1. The questions vare related to projectCAN,UDS protocol
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Q2. CAPL programming questions
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Q1. Asked formal HR questions like salary,notice period etc
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