Spinebiz Test Engineer Interview Questions and Answers

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

Basic aptitude test and was unproctored

Q1. It was a online technical round
Add your answer

MCQ questions on OS, JS and HTML

Basic Questions from resume. String/Array DSA questions

General topics like mathe, English, social etc

It represents the eligibility of person and thinking process ,view of thoughts

Q1. We cannot judge people to atonce chance
Add your answer

Skills ,fast typing , experienced ,new ideas

Q1. All the knowledge of technical work and word
Add your answer

Deeply study case and make a point to make attractive

Q1. React lifecycle methods, React hooks
Add your answer

Q1. RDBMS related questions asked
Add your answer
Q2. SQL login building related questions
Add your answer

Just plain leetcode medium questions