A network administrator wants to see what ports are open on a server. Which of the following commands will show open ports?

A ternary tree is like a binary tree, except each node may have up to three successors. Write a TNode class that can be used to represent a ternary tree. Define a notion of preorder and postorder traversal for ternary trees, and write methods void postorder(TNode tree) and void preorder(TNode tree) that implements your notion of those traversals.

What will be an ideal response?

Under the guise of justice, some less scrupulous administrators may be tempted to ____________________, or hack into a hacker's system to find out as much as possible about the hacker.

Fill in the blank(s) with the appropriate word(s).