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Google Interview Questions and Answers
Q1. what are the types of design patterns
Design patterns are categorized into three types: creational, structural, and behavioral.
Creational patterns deal with object creation mechanisms, trying to create objects in a manner suitable to the situation.
Structural patterns deal with object composition, trying to form large structures from individual objects.
Behavioral patterns deal with communication between objects, focusing on how objects collaborate and fulfill a given task.
Q2. How to measure success of QA team
The success of a QA team can be measured by various factors such as bug detection rate, test coverage, customer satisfaction, and team productivity.
Bug detection rate: Measure the number of bugs found by the QA team in a given time period. A higher bug detection rate indicates a more successful QA team.
Test coverage: Evaluate the percentage of the system or application that has been tested. A higher test coverage indicates a more successful QA team.
Customer satisfaction: Gath...read more
Q3. QA metrics to be used for project
QA metrics should be relevant, measurable, and aligned with project goals.
Identify key performance indicators (KPIs) for the project
Track defect density, defect rejection rate, and test coverage
Monitor customer satisfaction and feedback
Use automation metrics such as test execution time and test case pass/fail rate
Regularly review and analyze metrics to identify areas for improvement
Q4. How to fire people
Firing people should be a last resort and handled with empathy and professionalism.
Ensure clear communication of expectations and consequences
Provide opportunities for improvement and support
Document performance issues and follow company policies
Conduct the termination meeting in private and with a witness
Offer a severance package if applicable
Remain respectful and empathetic throughout the process
Q5. What is product life cycle?
Product life cycle refers to the stages a product goes through from introduction to decline.
Product introduction
Growth
Maturity
Decline
Marketing strategies vary at each stage
Examples: iPod, Nokia phones, VHS tapes
Q6. What is regression testing
Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.
Regression testing is performed after code changes to verify that the existing features still work correctly.
It helps in identifying any defects introduced by new code changes.
Automated testing tools are often used for regression testing to save time and effort.
Regression testing can be done manually or automatically.
Examples...read more
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