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17) A 1000BASE-SX Ethernet connection operates on a multimode fiber optic cable at a frequency of 353THz. What is the wavelength of the transmission channel? 850nm 85nm 8.5nm

17) A 1000BASE-SX Ethernet connection operates on a multimode fiber optic cable at a frequency of 353THz. What is the wavelength of the transmission channel? 850nm 85nm 8.5nm

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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17) A 1000BASE-SX Ethernet connection operates on a multimode fiber optic cable at a frequency of 353THz. What is the wavelength of the transmission channel?

850nm

85nm

8.5nm

18 ) In a telephone TDM system, a DS0 has a capacity of 64kbps and a T1 link rate is 1.544Mbps. How many simultaneous voice conversations can a T1 carry?

28

24

41

98

0.85nm

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