Nail Your Next Job Interview with These Top Questions and Answers | aihirely
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07 Jan, 2025
Top Mostly Asked C Interview Questions and Answers
A segmentation fault (often referred to as a segfault) in C occurs when a program attempts to access a memory location that it is not allowed to access. This results in a runtime error that usually causes the program to crash. Segmentation faults are typically caused by improper memory access, such as reading from or writing to invalid memory locations.
07 Jan, 2025
Top MySQL Interview Questions (2025)
The GROUP BY clause in MySQL is used to group rows that have the same values in specified columns into summary rows, often used with aggregate functions like COUNT(), SUM(), AVG(), MIN(), and MAX() to perform calculations on each group. Essentially, it allows you to aggregate data across multiple rows and summarize it into a smaller set of results.
07 Jan, 2025
Top MySQL Interview Questions and Answers for 2025
In MySQL, a storage engine is responsible for how data is stored, retrieved, and manipulated in the database. MySQL supports several storage engines, each designed for different use cases and offering specific features. The storage engine determines things like data integrity, speed, transaction support, and indexing.
07 Jan, 2025
Top iOS Interview Questions and Answers(2024)
Core Data is a powerful framework provided by Apple for managing the model layer of an iOS application. It is primarily used for object graph management and data persistence. Core Data allows developers to work with data in the form of objects and efficiently manage, store, and retrieve data from a variety of data stores (such as SQLite, XML, and binary).
07 Jan, 2025
Top iOS Interview Questions and Answers
The @objc attribute in Swift is used to expose Swift code (such as methods, properties, or classes) to the Objective-C runtime. This allows Swift code to be used with Objective-C features, such as dynamic dispatch, selectors, KVO (Key-Value Observing), and targets for actions. The @objc attribute is essential for interoperability between Swift and Objective-C, especially when working with APIs that require Objective-C runtime features.
07 Jan, 2025
Top iOS Interview Questions(2025)
The Model-View-Controller (MVC) design pattern is one of the most commonly used design patterns in iOS development. It is used to separate the concerns of an application into three distinct components: Model, View, and Controller. This separation helps make the application more modular, maintainable, and scalable.
07 Jan, 2025
Top iOS Interview Questions
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.
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