Akal Information Systems Interview Questions and Answers

ASP.NET is a framework for building web applications and services using .NET technologies, enabling dynamic and scalable solutions.

• .NET is a software development framework created by Microsoft.

• It supports multiple programming languages like C#, VB.NET, and F#.

• ASP.NET is a part of .NET specifically for building web applications.

• It provides libraries and tools for developing web APIs, MVC applications, and more.

• Exam...read more

EC2 (Elastic Compute Cloud) is a web service that provides resizable compute capacity in the cloud.

• EC2 allows users to rent virtual servers on which to run their own applications

• Users can choose from various instance types with different CPU, memory, storage, and networking capabilities

• EC2 instances can be easily scaled up or down based on demand

• Users only pay for the compute capacity they actually use

React is a JavaScript library for building user interfaces.

• React is component-based, meaning UI is broken down into reusable pieces

• Components can have states, which are mutable data that affect rendering

• Redux is a state management library that can be used with React

• Redux helps manage complex states and data flow in larger applications

I have used various design patterns such as MVC, Singleton, Factory, and Observer.

• Implemented MVC pattern in a web application to separate concerns

• Used Singleton pattern to ensure only one instance of a class is created

• Implemented Factory pattern to create objects based on input parameters

• Used Observer pattern to notify multiple objects of changes in a subject

Memory leaks in Java occur when objects are no longer needed but are still referenced, preventing garbage collection.

• Use weak references to allow garbage collection of objects that are no longer in use.

• Regularly profile your application using tools like VisualVM or Eclipse Memory Analyzer.

• Avoid static references to large objects, as they can persist longer than necessary.

• Implement proper cleanup in finally blocks ...read more

Binary search is a search algorithm that finds the position of a target value within a sorted array.

• Binary search works by repeatedly dividing the search interval in half.

• It requires a sorted array to work efficiently.

• The time complexity of binary search is O(log n).