Delta Software Interview Questions and Answers for Experienced

I have experience in network design, implementation, and troubleshooting.

• Designed and implemented LAN and WAN networks for multiple clients

• Configured and maintained network devices such as routers, switches, and firewalls

• Troubleshot network issues and resolved them in a timely manner

• Implemented network security measures to protect against cyber threats

ISPs are Internet Service Providers that provide internet access to users.

• ISPs offer different types of internet connections such as DSL, cable, fiber, and satellite.

• Some popular ISPs include Comcast, AT&T, Verizon, and Spectrum.

• ISPs may also offer additional services such as email, web hosting, and virtual private networks (VPNs).

The sequence of steps a browser takes to convert HTML, CSS, and JavaScript into a rendered page.

• Includes parsing HTML, constructing the DOM tree, calculating styles, and executing JavaScript.

• Optimizing the critical rendering path can improve page load times and user experience.

• Examples of optimization techniques include minimizing render-blocking resources and using lazy loading.

• The critical rendering path can vary dep

Asynchronous in JS means executing code without blocking the main thread.

• Asynchronous code allows other code to run while waiting for a task to complete.

• It is commonly used for network requests, file I/O, and other time-consuming operations.

• Callbacks, Promises, and Async/Await are common ways to handle asynchronous code in JS.

A class in JavaScript is a blueprint for creating objects with similar properties and methods.

• Classes are used to create multiple objects with the same structure and behavior.

• They provide a way to organize and encapsulate related data and functions.

• Classes can have properties (variables) and methods (functions) that define their behavior.

• Instances of a class can be created using the 'new' keyword.

• Classes can also have ...read more

Mobile first design is an approach where the design and development of a website or application starts with the mobile version.

• Designing for smaller screens first

• Prioritizing content and functionality for mobile users

• Adapting the design for larger screens

• Focusing on speed and performance

• Examples: Instagram, Twitter, and Facebook

Service provides data and functionality while Component handles UI and user interaction.

• Service is a singleton object that can be injected into multiple components

• Component is a directive with a template and styles

• Service provides data and functionality to components

• Component handles UI and user interaction

• Services can be used to share data between components

• Components can communicate with services using dependency inj

State variables are best for managing component's internal state, while properties are best for passing data from parent to child components.

• State variables are mutable and can be changed within the component

• Properties are immutable and cannot be changed within the component

• State variables are used to manage the component's internal state

• Properties are used to pass data from parent to child components

• State variables ar...read more

Authentication system in API service must be configured securely to prevent external hacking.

• Use strong encryption algorithms to store passwords

• Implement multi-factor authentication

• Use HTTPS protocol to encrypt data in transit

• Implement rate limiting to prevent brute force attacks

• Regularly update and patch the authentication system

• Use secure coding practices to prevent injection attacks

Clients of one domain can access API service through authentication and authorization managed by API service.

• API service can use OAuth2.0 for authentication and authorization

• Different domains can have different client IDs and secrets for OAuth2.0

• API service can use JWT for token-based authentication

• Cross-Origin Resource Sharing (CORS) can be used to allow access from different domains

APIs are tools that allow different software applications to communicate with each other. An example of maximum use is integrating a payment gateway API into an e-commerce website.

• API stands for Application Programming Interface

• APIs allow different software applications to communicate with each other

• APIs can be used to integrate different functionalities into a software application

• An example of maximum use is integrati...read more

Integrating Power BI with Adobe Captivate Prime can provide valuable insights for sales management.

• Power BI can be used to create interactive dashboards and reports that can be integrated with Adobe Captivate Prime.

• This integration can help sales managers to track the progress of their sales team and identify areas for improvement.

• Project work on Power BI can involve creating custom reports and dashboards that are tail...read more

LMS stands for Learning Management System. It is a software application used for delivering, managing, and tracking online training and education.

• LMS is used to create and deliver online courses and training programs.

• It allows learners to access training materials from anywhere, at any time.

• LMS provides tools for tracking learner progress and assessing their performance.

• It can be used to manage and organize training co...read more