Which organization assigns IP addresses for North America?

When a user logs in, you would like the system to first check the local /etc/passwd file for a username and then check NIS. How do you implement this strategy?

What will be an ideal response?

_____is an HTML entity used to display ¼ on a webpage.?

A. ?*frac14; B. ?14&frac; C. ?14*frac; D. ?¼