Which transmission technology is an interface standard for transporting digital signals over fiber-optic lines that enables the integration of transmissions from multiple vendors?
A) Digital subscriber line
B) Asynchronous transfer mode
C) Synchronous optical network
D) T-carrier system
E) ISDN

Question

Quizplus · Accepted Answer

Synchronous optical network (SONET) is an interface standard for transporting digital signals over fiber-optic lines. It provides a set of optical networking standards allowing for the integration of transmissions from multiple vendors. SONET defines a hierarchy of standardized data rates that can be transported over fiber-optic lines, and it ensures that different vendors' equipment can interoperate with one another. Choices A, B, D, and E are all transmission technologies, but they do not specifically deal with fiber-optic lines or integrating transmissions from multiple vendors.

Which Transmission Technology Is an Interface Standard for Transporting Digital