1.a. The data transmission rate in one direction over a BLSR ring network is _______ its OC-n line rate. A. half B. double C. equal to D. triple 1.b. How does a four-fiber BLSR network stay online if the work fiber in a span fails? A. Line switching routes traffic around a different span. B. The network reduces down to three fibers and operates as normal. C. The network doesn't stay online. D. Span switching routes traffic over protect fiber.

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Transmission media

A communication channel that transmits data from a source to a recipient is referred to as "transmission media." Electromagnetic impulses are used to transmit data. Transmission media's primary purpose is to transmit data in the form of bits via a local area network (LAN). In data transport, it is the physical link that connects the transmitter and receiver. Transmission medium is part of layer 1 or physical layer of the ISO/OSI (Open System Interconnection) model.