Optiva Senior Engineer Interview Questions and Answers for Experienced

End to end application architecture refers to the overall structure and design of an application from the front-end user interface to the back-end server infrastructure.

• Front-end: Includes user interface design, user experience, and client-side technologies like HTML, CSS, and JavaScript.

• Back-end: Involves server-side technologies, databases, and application logic.

• Middleware: Connects the front-end and back-end compone...read more

Last issue faced was with software compatibility during testing phase.

• Encountered compatibility issues between the software being tested and the testing environment

• Had to troubleshoot and identify the root cause of the compatibility issues

• Collaborated with developers to find solutions and implement necessary changes

• Performed regression testing to ensure the compatibility issues were resolved

Seeking new challenges and growth opportunities in a different environment.

• Looking for new challenges and opportunities for growth

• Interested in exploring different industries or technologies

• Seeking a better work-life balance

• Want to relocate to a different city or country

ETL stands for Extract, Transform, Load. It is used to extract data from various sources, transform it into a consistent format, and load it into a data warehouse for analysis.

• Extract: Data is extracted from different sources such as databases, files, or APIs.

• Transform: The extracted data is cleaned, filtered, and transformed into a consistent format.

• Load: The transformed data is loaded into a data warehouse for analys...read more

SCD types refer to slowly changing dimensions in data warehousing, used to track historical changes in data over time.

• SCD Type 1: Overwrites old data with new data, losing historical information.

• SCD Type 2: Keeps multiple versions of the same record, creating new records for each change.

• SCD Type 3: Keeps some historical data in the same record, adding new columns for changes.

• SCD Type 4: Uses separate tables to store hi...read more

Canoe simulation is a software tool used for modeling and simulating the behavior of automotive electronic control units (ECUs) in a virtual environment.

• Canoe simulation allows engineers to test and validate the functionality of ECUs before physical implementation in vehicles.

• It can simulate various communication protocols such as CAN, LIN, and FlexRay to mimic real-world scenarios.

• Engineers can create and execute test...read more