Alstom Transportation Interview Questions, Process, and Tips

Diesel engines use compression ignition while petrol engines use spark ignition.

• Diesel engines use compression ignition, where the fuel-air mixture is ignited by the heat of high compression, while petrol engines use spark ignition, where a spark plug ignites the fuel-air mixture.

• Diesel engines are more fuel efficient than petrol engines due to higher compression ratios and slower combustion process.

• Petrol engines gene...read more

Answers to questions related to software testing and SDLC process.

• Verification ensures that the software meets the specified requirements while validation ensures that the software meets the customer's needs.

• Microprocessor is a single chip CPU while microcontroller is a complete computer system on a chip.

• Test levels include unit testing, integration testing, system testing, and acceptance testing.

• Smoke testing is a qui...read more

RCA is necessary to identify the root cause of defects and prevent their recurrence. Requirement mapping ensures test coverage.

• RCA helps in identifying the underlying cause of defects and taking corrective actions to prevent their recurrence.

• It helps in improving the quality of the product and reducing the cost of defects.

• Requirement mapping ensures that all the requirements are covered in the testing process.

• It helps ...read more

STLC has 5 types: Waterfall, V-Model, Agile, Spiral, and Iterative. Test deliverables vary by test level.

• STLC types include Waterfall, V-Model, Agile, Spiral, and Iterative

• Waterfall follows a linear sequential approach, while Agile is iterative and incremental

• V-Model emphasizes testing at each stage of development

• Spiral combines elements of both Waterfall and Agile

• Test deliverables vary by test level, such as test plan