Selfie Kurtiz Interview Questions and Answers

S in OOPs stands for 'Single Responsibility Principle'

• Single Responsibility Principle states that a class should have only one reason to change

• It helps in making the code more modular and maintainable

• For example, a class that handles user authentication should not also handle sending emails

API stands for Application Programming Interface. It is a set of protocols, routines, and tools for building software applications.

• API allows different software applications to communicate with each other

• It defines how software components should interact

• APIs can be public or private

• Examples of APIs include Google Maps API, Twitter API, and Facebook API

PHP stands for Hypertext Preprocessor. It is a server-side scripting language used for web development.

• PHP is an open-source language

• It is used to create dynamic web pages

• PHP code is executed on the server side

• It can interact with databases like MySQL

• Popular CMS like WordPress, Drupal, and Joomla are built on PHP

DS stands for Data Structure because it is a way of organizing and storing data in a computer so that it can be accessed and used efficiently.

• Data structures are used to organize and store data in a way that makes it easy to access and manipulate.

• Examples of data structures include arrays, linked lists, stacks, queues, trees, and graphs.

• Data structures are an important part of computer science and are used in many different applications, from databases to video games.

JDK is a development kit, JRE is a runtime environment, and JVM is a virtual machine that executes Java code.

• JDK includes JRE and development tools like javac and java

• JRE includes JVM and necessary libraries to run Java applications

• JVM is responsible for interpreting Java bytecode and executing it

• Different versions of JDK, JRE, and JVM may be installed on the same machine

• JDK is used for developing Java applications, JRE is used for running them

HTML is used for structuring content on a webpage, while CSS is used for styling and formatting that content.

• HTML stands for HyperText Markup Language and is used to create the structure of a webpage.

• CSS stands for Cascading Style Sheets and is used to style the HTML elements on a webpage.

• HTML uses tags to define elements like headings, paragraphs, and images.

• CSS uses selectors to target specific HTML elements and apply styles like colors, fonts, and layout.

• HTML is responsibl...read more

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalization involves breaking down a database into smaller, more manageable tables

• Each table should have a primary key and only contain data that is related to that key

• Normalization helps to prevent data inconsistencies and anomalies

• There are different levels of normalization, with each level building on the previous one

• Examples of normalization include converting r...read more