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27 Dec, 2024
Most Frequently asked python-3.x Interview Questions (2024)
Python 2.x and Python 3.x are two major versions of the Python programming language. Python 3.x was released to fix various design flaws and provide better support for modern programming practices, but this led to backward incompatibility with Python 2.x. Below are the key differences between Python 2.x and Python 3.x:
27 Dec, 2024
Most Frequently asked ruby-on-rails Interview Questions (2024)
Ruby on Rails (RoR) is an open-source web application framework written in the Ruby programming language. It is designed to make web development faster and easier by emphasizing convention over configuration (CoC) and don’t repeat yourself (DRY) principles. This allows developers to write less code while achieving more functionality.
27 Dec, 2024
Most Frequently asked sql-server Interview Questions (2024)
SQL Server is a relational database management system (RDBMS) developed by Microsoft. It is used to store, retrieve, and manage data in a structured format, primarily using Structured Query Language (SQL) to query and manipulate the data. SQL Server is widely used in enterprise environments for various applications, from small business applications to large-scale enterprise systems, supporting OLTP (Online Transaction Processing) as well as OLAP (Online Analytical Processing).
27 Dec, 2024
Most Frequently asked swift Interview Questions (2024)
In Swift, let and var are both used to declare variables, but they differ in terms of mutability:- let: This keyword is used to declare constants, meaning the value assigned to the variable cannot be changed after it is set. Once a value is assigned to a let constant, you cannot modify it. This is similar to declaring an immutable reference.
26 Dec, 2024
Most Frequently asked arrays Interview Questions (2024)
An array is a data structure used to store multiple values in a single variable, which can be of the same or different types (depending on the programming language). Arrays are commonly used to organize data, store collections of items, and facilitate operations on a series of elements (such as looping through them, searching, or sorting).
26 Dec, 2024
Most Frequently asked ios Interview Questions (2024)
In Swift, memory management is handled using Automatic Reference Counting (ARC), which tracks and manages the memory of objects. The way objects are referenced in memory is critical to avoid memory leaks and crashes. Swift provides three types of references: strong, weak, and unowned. These references define how objects are held in memory and how they are deallocated.
26 Dec, 2024
Most Frequently asked mysql Interview Questions (2024)
MySQL is an open-source relational database management system (RDBMS) that uses Structured Query Language (SQL) to manage and manipulate relational databases. It is one of the most popular databases, known for its speed, reliability, and ease of use. MySQL is commonly used in web applications and has been a key component of the LAMP stack (Linux, Apache, MySQL, PHP/Perl/Python).
26 Dec, 2024
Most Frequently asked node.js Interview Questions (2024)
Node.js is a powerful, open-source, cross-platform runtime environment that allows developers to run JavaScript code outside of a web browser. It is built on the V8 JavaScript engine (the same engine used by Google Chrome) and is primarily used for building server-side applications. Node.js enables JavaScript to be used for back-end development, making it possible to use a single programming language (JavaScript) for both client-side and server-side code.
26 Dec, 2024
Most Frequently asked r Interview Questions (2024)
R is a programming language and software environment primarily used for statistical computing, data analysis, and visualization. It was designed by statisticians and data scientists to handle complex data operations and is widely used in academia, research, and industries like finance, healthcare, marketing, and data science.
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