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Which of the following statements, about the Frame Relay network shown in the graphic, are true?
The component labelled 1 is a DCE.
The component labelled 2 is an access link.
The component labelled 2 is a trunk line.
The component labelled 1 is a DTE.
The component labelled 3 is a DTE.
The component labelled 3 is a DCE.
DTE (Data Terminal Equipment) and DCE (Data Communications Equipment) are basic but important Frame Relay concepts. The routers typically located at customer sites are considered DTE, and the Frame Relay switches typically located at the edge of Frame Relay network are considered DCE. A DTE connects to a DCE over point-to-point access links. A Frame Relay switch connects to another Frame Relay switch over trunk lines.
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