While traversing a list, a node pointer knows when it has reached the end of a list when:
A) it encounters the newline character
B) it encounters NULL
C) it finds itself back at the beginning of the list
D) it encounters a sentinel, usually 9999
E) None of these

Question

Quizplus · Accepted Answer

In a linked list, each node stores the address of the next node in the list. When the last node is reached, its "next" pointer should be NULL (to indicate there are no more nodes in the list). Therefore, when a node pointer encounters NULL, it knows it has reached the end of the list.

While Traversing a List, a Node Pointer Knows When It