Question

Which of the following statements about Stacks is incorrect?

• A. New nodes can only be added to the top of the Mack.
• B. Stacks can be implemented using linked lists.
• C. Stacks are first-in, first-out data structures.
• D. The last node (at the bottom) of a stack has a null (0) link.
• E. Stacks are very useful.

Answer 1

The correct option is D The last node (at the bottom) of a stack has a null (0) link.

The last node (at the bottom) of a stack do not have a null (0) link. So option d is a wrong statement.