12.a. Which measurement is used to determine CWDM and DWDM channel losses? A. Span loss B. Patch cord loss C. Optical return loss D. Splice loss 12.b. Two channels in an OSA measurement are located at 1542.5 nm and 1537.2 nm. What's the channel spacing? A. 449 MHz B. 56.6 MHz C. 327 GHz D. 670 GHz
12.a. Which measurement is used to determine CWDM and DWDM channel losses? A. Span loss B. Patch cord loss C. Optical return loss D. Splice loss 12.b. Two channels in an OSA measurement are located at 1542.5 nm and 1537.2 nm. What's the channel spacing? A. 449 MHz B. 56.6 MHz C. 327 GHz D. 670 GHz
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
Problem 1PE
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12.a. Which measurement is used to determine CWDM and DWDM channel losses?
A. Span loss
B. Patch cord loss
C. Optical return loss
D. Splice loss
12.b. Two channels in an OSA measurement are located at 1542.5 nm and 1537.2 nm. What's the channel
spacing?
A. 449 MHz
B. 56.6 MHz
C. 327 GHz
D. 670 GHz
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Ans 1: The measurement that is used to determine CWDM and DWDM channel losses is:
a) Span loss
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