cis4307, Fall 2009
5 Minute Test # 3
September 24, 2009


1. (10)	We have seen that Unix keeps in memory for an open file both an inode
	and a v-node. What is the purpose of the v-node?










2. (5)	How does the shell execute something like
		% foo












3. (15) Given the definition 
	   typedef struct Node { struct Node *left; struct Node *right; int value} node;
	Implement in C the function int largest(node *root); 
	which, given the root of a tree, returns the largest value stored in the tree 
	rooted at root.