Which statement describes static and dynamic data structures correctly and gives an example?

Which statement describes static and dynamic data structures correctly and gives an example?

• A. Static has fixed size (e.g., array).
• B. Dynamic grows and shrinks (e.g., list).
• C. Dynamic has fixed size.
• D. Static can grow or shrink as needed.

Answer: (A)

This is about fixed-size versus resizable data structures. Static structures have a fixed capacity that doesn’t change after creation, so they don’t automatically resize to accommodate more data. An array is a classic example: you decide its length up front and you can’t change that size without creating a new array. Dynamic structures, in contrast, can grow or shrink as elements are added or removed, so they adapt to how much data you need to store; a list is a typical example because you can append and delete items as needed. So, describing static as having a fixed size with an array as a concrete example best matches how these structures behave. The other statements either flip the properties or describe resizing in a way that doesn’t fit how static and dynamic structures work.

This is about fixed-size versus resizable data structures. Static structures have a fixed capacity that doesn’t change after creation, so they don’t automatically resize to accommodate more data. An array is a classic example: you decide its length up front and you can’t change that size without creating a new array. Dynamic structures, in contrast, can grow or shrink as elements are added or removed, so they adapt to how much data you need to store; a list is a typical example because you can append and delete items as needed. So, describing static as having a fixed size with an array as a concrete example best matches how these structures behave. The other statements either flip the properties or describe resizing in a way that doesn’t fit how static and dynamic structures work.