01What is a 'Jagged Array' in C#?
02Which LINQ method is used to transform elements into a new form (e.g., mapping an object to a string)?
03If you need to find the index of a specific value in a one-dimensional array, which method would you use?
04Which List<T> method is best for adding an entire collection of items at once?
05Which LINQ method returns true only if EVERY element in a collection matches a condition?