Ubq Technologies Senior Software Engineer Interview Questions, Process, and Tips

Analytical Questions and Mathematical Aptitude.

General current affairs

Q1. Explain Inheritance and Polymorphism
Ans. 
Inheritance is a mechanism where a new class is derived from an existing class. Polymorphism is the ability of an object to take on many forms.
• Inheritance allows a subclass to inherit properties and methods from a superclass.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• Example of inheritance: class Car extends Vehicle

• Example of polymorphism: Animal animal = new Dog();
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Q2. Explain OOP principles
Ans. 
OOP principles are a set of guidelines for designing and implementing object-oriented programs.
• Encapsulation: bundling data and methods that operate on that data within a single unit

• Inheritance: creating new classes from existing ones, inheriting their properties and methods

• Polymorphism: the ability of objects to take on many forms, allowing for flexibility and extensibility

• Abstraction: hiding implementation details an...read more
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Q3. What is normalisation in database
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a table into smaller tables and defining relationships between them.

• It helps to eliminate data redundancy and inconsistencies.

• There are different levels of normalization, with each level having specific rules to follow.

• Normalization can improve database performance and make ...read more
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Q4. Sort an array of strings
Ans. 
Sort an array of strings
• Use built-in sorting functions in programming languages

• Implement custom sorting algorithms if necessary

• Consider case sensitivity and locale when sorting
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Q1. General topics of interest from your resume and your education background. This will be taken by the CEO so update in resume what you are most confident about.
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