What is directional relay and its advantages and disadvantages?

How many gamemasters are there in World of Warcraft? What is kapri styles best video? Is Tekken 4 any good? How do I have the katana body on Halo 3 when I don't have 1000 gamerscore or all the achievements? Who created Megaman? I cannot submit my freerider 2 track on trackmill because it says Please give the map a real name thanks only 1 Space allowed when you press submit? Is call of duty 2 split screen campaign? How does a super soaker work and what does it do? Does the xbox 360 Kinect record? How do you leave the animus in assassin's creed brotherhood? Do mob spawners work under water? What is a skeleton in mine craft? How many worlds are there in the Sims 3? How much does geek squad charge for a home visit? What are the chances of catching a Pokemon in Pokemon red rescue team? What happens when you collect all Intel in modern warfare 3? Where is the Department store in Pokemon Ruby? Should I get Left 4 Dead 2 or Just cause 2? How many tents will a compground hold? What happens to a body when shutting down?