SFO Technologies Electronics Engineer Interview Questions and Answers

Q1. What is the difference between retest & regression?
Ans. 
Retest verifies specific defects are fixed; regression checks overall functionality after changes.
• Retest focuses on specific bugs that were fixed. Example: If a login issue was fixed, retesting ensures it works now.

• Regression testing checks if new changes affect existing features. Example: After adding a new payment method, regression tests ensure previous methods still work.

• Retest is usually done in the same build whe...read more
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Q2. How many types of testing are you aware of?
Ans. 
There are various types of testing, each serving a unique purpose in ensuring software quality and performance.
• Unit Testing: Tests individual components for correctness (e.g., testing a function in isolation).

• Integration Testing: Checks the interaction between integrated components (e.g., testing a database connection).

• System Testing: Validates the complete and integrated software system (e.g., testing the entire appli...read more
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Q1. What is Automation
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Automation is the use of technology to perform tasks with minimal human intervention, enhancing efficiency and accuracy.
• In software testing, automation involves using scripts and tools to execute tests automatically.

• Examples of automation tools include Selenium for web applications and Appium for mobile apps.

• Automation helps in regression testing, allowing for quick verification of existing functionalities after change...read more
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Q2. What is Regression Testing
Ans. 
Regression Testing ensures that new code changes do not adversely affect existing functionalities.
• Verifies that previously developed and tested software still performs after changes.

• Can be automated to save time and increase efficiency.

• Example: After adding a new feature, regression testing checks if existing features still work.

• Involves re-running functional and non-functional tests.

• Helps identify bugs introduced by r...read more
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Mostly Testing related concepts

Q1. Basic stuff about your self why do we hire you like this
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Q1. What is Regression testing
Ans. 
Regression testing is the process of retesting modified software to ensure that the existing functionalities are not affected.
• Regression testing is performed after making changes to the software to ensure that the modifications have not introduced new bugs or issues.

• It involves re-executing previously executed test cases to verify that the existing functionalities still work as expected.

• Regression testing helps in iden...read more
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Q2. What is Ad hoc Testing
Ans. 
Ad hoc testing is an informal and unplanned testing approach without any specific test cases or plans.
• It is performed without any formal documentation or planning

• It is usually done to find defects that are not found in normal test cases

• It is an exploratory testing approach

• It is not repeatable or consistent

• It is useful for testing user interfaces and usability

• Example: Clicking on random buttons on a website to see if th...read more
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