Tech quiz of the day: How much do you know about P4P?

The WhatIs.com Word of the Day is P4P.

Tech Trivia
A P2P network is typically set up on an ad-hoc basis. What does ad-hoc mean?
Answer (Scroll to the middle of the first paragraph.)

Secret Word of the Day
Star, ring, bus, tree and mesh are all examples of this. What’s the secret word?
Answer

IT Acronym Challenge
A MAN interconnects a city’s networks into a single larger network (which may then also offer efficient connection to a WAN). What does MAN stand for?
Answer