<span>The customer's endpoint device on the WAN is called the Data Terminal Equipment (DTA).
WAN is wide area network, referring to a network that extends over a large area. DTA is an end instrument which converts information into signals.</span>
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You go to account settings, edit your profile and click preferences and then go to choose level and put which grade u are in the options r middle school, high school, and college
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They allow you to ask more questions and also your rank goes up or down.
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