Excellon Software Software Testing Lead Interview Questions and Answers

Basic aptitude test and was unproctored

Q1. It was a online technical round
Add your answer

Q1. What is singleton design pattern
Ans. 
Singleton design pattern restricts the instantiation of a class to a single instance and provides global access to it.
• Used when only one instance of a class is required throughout the application

• Provides a global point of access to the instance

• Implemented using a private constructor, static method, and static variable

• Example: Logger class, Database connection class
Answered by AI
Add your answer
Q2. C# LINQ queries for group and sum data from data table
Ans. 
C# LINQ queries for group and sum data from data table
• Use GroupBy() method to group data based on a specific column

• Use Sum() method to calculate the sum of a column

• Use Select() method to select the required columns
Answered by AI
Add your answer
Q3. Solid design principles
Ans. 
Solid design principles are a set of guidelines for writing maintainable and scalable code.
• Single Responsibility Principle (SRP) - each class should have only one responsibility

• Open/Closed Principle (OCP) - classes should be open for extension but closed for modification

• Liskov Substitution Principle (LSP) - subclasses should be able to replace their parent classes without affecting the program's correctness

• Interface Se...read more
Answered by AI
Add your answer
Q4. OOPS concepts ,like association and all
Add your answer

MCQ questions on OS, JS and HTML

Basic Questions from resume. String/Array DSA questions

Dp, trees and basic time complexity

Q1. Tell me about your self
Ans. 
I am a software engineer with 5 years of experience in developing web applications using Java, Spring, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Strong problem-solving skills

• Experience working in Agile development environment
Answered by AI
Add your answer
Q2. Projects and intership
Add your answer

Coding Rount
DSA Round + Puzzle
SQL + Project Discussion
JS

Q1. Phone screen about previous experience
Add your answer

Q1. Mobile app development basics
Add your answer

Q1. Culture fit questions
Add your answer

Q1. Given the react machine coding example
Ans. 
The react machine coding example involves demonstrating knowledge and skills in React programming.
• Understand the component lifecycle in React

• Demonstrate proficiency in state management using hooks or Redux

• Show ability to create reusable components and handle user input

• Implement routing and navigation in React applications
Answered by AI
Add your answer

Q1. Explain about your projects
Ans. 
I have worked on various projects including a web application for inventory management and a mobile app for task tracking.
• Developed a web application using React for inventory management system

• Created a mobile app using Flutter for task tracking and reminders

• Implemented RESTful APIs for communication between frontend and backend systems
Answered by AI
Add your answer

Q1. System design for can service
Add your answer
Q2. Objective questions on sql query
Add your answer