Question Bank

What is the Repository pattern in software architecture?

What is the purpose of mocking in unit tests?

What is Blazor in the .NET ecosystem?

What is SignalR in ASP.NET Core?

When a method returns a Task and throws an exception, where is the exception stored?

What are extension methods in C#?

What is the ThreadPool in .NET?

Why is 'PDF tagging' essential for accessibility?

What is the primary accessibility benefit of using semantic HTML elements like <main>, <nav>, and <header>?

What identifies an 'accessible infographic' for screen reader users?

It is a best practice to remove the visual focus outline (e.g., outline: none) from actionable elements for all users via CSS.

When should you use 'aria-live="assertive"' versus 'aria-live="polite"'?

What is the difference between an empty alt attribute (alt="") and a missing alt attribute for an image?

What is a 'focus trap' and when is it necessary?

Why are relative units like 'rem' or 'em' preferred over 'px' for setting font sizes?

In WCAG compliance levels, what is the key difference between A, AA, and AAA?

What are 'skip links' and why are they used on websites?

What is the primary purpose of the Buffer class in Node.js?

Why are synchronous methods like fs.readFileSync() generally discouraged in Node.js web server applications?

In the 'http' module, which method is used to initialize a server and define a request listener?