18.a. What's the transceiver optical budget in a 100Base-FX Ethernet network? A. –20 dBm B. 11 dB C. –31 dBm D. 17 dB 18.b. How far can cable links span in the ring portion of an FDDI network? A. 300 km B. 20 km C. 200 km D. 100 km

18.a. What's the transceiver optical budget in a 100Base-FX Ethernet network? A. –20 dBm B. 11 dB C. –31 dBm D. 17 dB 18.b. How far can cable links span in the ring portion of an FDDI network? A. 300 km B. 20 km C. 200 km D. 100 km

Comptia A+ Core 1 Exam: Guide To Computing Infrastructure (mindtap Course List)

10th Edition

ISBN:9780357108376

Author:Jean Andrews, Joy Dark, Jill West

Publisher:Jean Andrews, Joy Dark, Jill West

Chapter9: Supporting Mobile Devices

Section: Chapter Questions

Problem 17TC

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Concept explainers

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.

Question

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18.a. What's the transceiver optical budget in a 100Base-FX Ethernet network?
A. –20 dBm
B. 11 dB
C. –31 dBm
D. 17 dB

18.b. How far can cable links span in the ring portion of an FDDI network?
A. 300 km
B. 20 km
C. 200 km
D. 100 km

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