PHN Technology Software Developer Interview Questions and Answers for Freshers

Q1. What is middleware
Ans. 
Middleware is software that acts as a bridge between different applications, allowing them to communicate and share data.
• Middleware facilitates communication and data exchange between different software components.

• It provides a layer of abstraction, allowing applications to interact without needing to understand each other's internal workings.

• Examples of middleware include web servers, message queues, and API gateways.
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Q2. What is MVC, does laravel follow MVC architecture
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MVC stands for Model-View-Controller. Laravel follows the MVC architecture.
• MVC is a software design pattern that separates an application into three interconnected components: Model, View, and Controller.

• Model represents the data and business logic of the application.

• View is responsible for rendering the user interface.

• Controller handles the user input, updates the model, and interacts with the view.

• Laravel, a popular ...read more
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Q3. Difference between == and ===
Ans. 
The difference between == and === is that == performs type coercion, while === does not.
• The == operator compares two values for equality, allowing type coercion.

• The === operator compares two values for equality, without type coercion.

• Using ==, different types can be considered equal if they can be coerced into the same value.

• Using ===, different types are not considered equal, even if they have the same value.
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Q4. Explain OOPS Concept
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OOPS (Object-Oriented Programming) is a programming paradigm that uses objects to represent and manipulate data.
• OOPS focuses on creating reusable code through the use of classes and objects.

• It emphasizes the concepts of encapsulation, inheritance, and polymorphism.

• Encapsulation allows data and methods to be bundled together within a class.

• Inheritance enables the creation of new classes based on existing ones, inheritin...read more
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Q5. What is model, controller, migrations in laravel
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Model, controller, and migrations are key components in the Laravel framework for organizing and managing database-related operations.
• Model: Represents the data structure and logic of a specific table in the database.

• Controller: Handles the logic and flow of the application, interacting with models and views.

• Migrations: Allow for database schema changes and version control, making it easy to manage and deploy database ...read more
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Build customer enquiry page with client/server input validation, after successful registration send an email to the user, also add google recaptcha

Pandas numpy matplotlib mean median mode and linear regression assignment

Q1. What is mean by linear regression and their types
Ans. 
Linear regression is a statistical method to model the relationship between a dependent variable and one or more independent variables.
• Linear regression is used to predict a continuous outcome based on one or more input features.

• Types of linear regression include simple linear regression (one independent variable), multiple linear regression (multiple independent variables), and polynomial regression (non-linear relati...read more
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