You are a technical support engineer for an IEEE 802.11 wireless network in a small office complex. You are called in to check with a user who has been complaining that the wireless network is running slowly. As you change the orientation of the user's notebook computer, you notice the signal strength varies. This variation in signal strength as a result of movement of the notebook is the result of a change in what?

the answer is a   : ) hope that

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).

we need a link or picture : )