OptiSol Business Solutions Test Engineer Interview Questions and Answers

Reverse a string in Java using StringBuilder or iterative approach.

• Use StringBuilder to reverse the string: StringBuilder sb = new StringBuilder(str); sb.reverse().toString();

• Iterative approach: Convert the string to char array, swap characters from start and end indexes until middle is reached.

The xpath for MakeMyTrip datepicker can be written using unique attributes of the datepicker element.

• Use unique attributes like class, id, or data-testid to locate the datepicker element

• Consider the structure of the datepicker and its parent elements when writing the xpath

• Use indexes or sibling relationships if necessary to pinpoint the datepicker element

Use SQL query with ORDER BY clause to order employees in ascending order.

• Use SELECT statement to retrieve employee data

• Add ORDER BY clause with the column you want to order by

• Specify ASC keyword for ascending order

• Example: SELECT * FROM employees ORDER BY employee_id ASC;

Smoke testing is a subset of regression testing, focusing on basic functionality, while sanity testing is a subset of acceptance testing, focusing on specific areas.

• Smoke testing is performed to check if the critical functionalities of the application are working fine after changes.

• Sanity testing is performed to check if the specific areas of the application are working fine after changes.

• Smoke testing is a shallow and...read more

Generate a coupon code based on minimum and maximum amount

• Determine the range of amounts for the coupon code

• Generate a random code within that range

• Assign positive or negative based on the criteria