8. (3 points) Which of the following is true about WANs? (Choose three.) I. The demarcation point separates the Customer Premises Equipment from the Service Provider Equipment. 2. An Ethernet switch terminates a digital local loop. 3. A DSU converts the digital signal used by CPE into the digital signal sent via the 4. 5. outside cabling to the carrier. A router is commonly considered a DTE device. A router is commonly considered a DCE device