The SONET interface is called a DQDB, and consists of two shared fiber-optic media.
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Q4: Q5: Currently, _ is the most commonly used Q6: SONET is proprietary, so point-to-point network equipment Q7: With this DSL version, the maximum distance Q8: SMDS is a connectionless transport system. Q10: High-speed Fast Ethernet technologies are beginning to Q11: The BRI ISDN supports faster data rates Q12: X.25 networks are designed to release unused Q13: In frame relay communications, the virtual connections Q14: X.25 is connection-oriented.
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