Which operation returns the number of nodes currently in the list?

• A. Initialize
• B. Get Length
• C. Print
• D. Destroy

Answer: (B)

The concept being tested is how to obtain the current size of a linked list. The operation that returns the number of nodes currently in the list is Get Length, which is typically called size or length in some implementations. It does exactly what its name suggests: it reports the current count of nodes. If the implementation maintains a dedicated length field, this operation can return the value in constant time. If no length is tracked, you would need to traverse from the head to the end and count nodes, which takes linear time. The other operations have different purposes: Initialize sets up an empty list, Print traverses the list to display node values, and Destroy deallocates all nodes. So Get Length is the function designed to reveal how many items are in the structure at that moment.