Delhivery Software Tester Interview Questions, Process, and Tips

Defect life cycle is the process of identifying, reporting, fixing, and verifying defects in software.

• Defect is identified by testers during testing

• Defect is reported to the development team

• Development team fixes the defect

• Fixed defect is verified by testers

• If defect is not fixed, it goes back to development team

• If defect is fixed, it is closed

A program to reverse a given string.

• Iterate through the string from the end and append each character to a new string.

• Use built-in functions like reverse() or StringBuilder in some programming languages.

• In-place reversal can also be done by swapping characters from both ends until the middle is reached.

Defects are issues or problems found in software during testing or after release.

• Defects can be functional, performance-related, or cosmetic.

• Defects can be classified by severity and priority.

• Examples of defects include crashes, incorrect calculations, and incorrect formatting.

• Defects can be found through manual or automated testing.

• Defects should be reported and tracked until they are resolved.

To find the highest frequency of a character in a string.

• Iterate through the string and count the frequency of each character.

• Return the character with the highest frequency.

• If multiple characters have the same highest frequency, return all of them.