Fidelity International Interview Questions and Answers

Designing an elevator system for a multiple story building involves considering factors like capacity, speed, safety features, and energy efficiency.

• Consider the number of floors in the building to determine the capacity and speed requirements of the elevator.

• Incorporate safety features such as emergency stop buttons, sensors to prevent door closing on passengers, and backup power supply.

• Opt for energy-efficient c...read more

DI and IoC are design patterns used in Spring Boot to achieve loose coupling and improve testability.

• DI (Dependency Injection) is a design pattern where the dependencies of a class are injected from the outside rather than created within the class itself.

• IoC (Inversion of Control) is a design principle where the control of object creation and lifecycle is inverted from the class to an external entity.

• Spring Boot u...read more

Exceptions are unexpected events that occur during the execution of a program, disrupting the normal flow of the program.

• Exceptions are used to handle errors and other exceptional conditions in a program.

• They allow the program to respond to unexpected situations and prevent the program from crashing.

• Examples of exceptions include division by zero, file not found, and out-of-memory errors.

Using Java8, reverse a string by converting it to a character array, using the Stream API, and collecting the characters in reverse order.

• Convert the string to a character array using toCharArray() method

• Use the Stream API to create a stream of characters

• Collect the characters in reverse order using Collectors.joining() method

Left outer join is a type of join operation that returns all records from the left table and the matched records from the right table.

• Left outer join combines rows from two tables based on a related column between them.

• It includes all the rows from the left table, even if there are no matches in the right table.

• Example: SELECT * FROM table1 LEFT JOIN table2 ON table1.id = table2.id;

I have extensive experience in testing various software applications and have consistently delivered high-quality results.

• I have worked on multiple projects and have gained expertise in manual and automation testing.

• I have a strong understanding of testing methodologies and have implemented them effectively.

• I have collaborated with cross-functional teams to identify and resolve issues, ensuring timely delivery of ...read more