PHN Technology
Black & White Business Solutions Interview Questions and Answers
Q1. What is MVC, does laravel follow MVC architecture
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 PHP framework, follows the MVC architecture.
For example, i...read more
Q2. What is model, controller, migrations in laravel
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 changes.
Example: In a blog application, the 'Post' model w...read more
Q3. What is mean by linear regression and their types
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 relationships).
Example: Predicting house prices based on square ...read more
Q4. What is middleware
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.
Q5. Difference between == and ===
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.
Q6. Explain OOPS Concept
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, inheriting their properties and behaviors.
Polymorphism allows objec...read more
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