The dispersion of a non-zero dispersion shifted fiber is 6 ps/nm*km at 1550 nm and 10 ps/nm*km at 1610 nm.
What is the minimum dispersion compensation required if an L-Band DWDM signal travels through 200 km of fiber and has a dispersion tolerance of 1800 ps/nm？（）
A. none
B. -600 ps/nm
C. -200 ps/nm
D. +200 ps/nm
E. +600 ps/nm
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A. 0.4 nanometers
B. 0.6 nanometers
C. 0.8 nanometers
D. 1.2 nanometers
E. 1.6 nanometers
Click the Exhibit button. Within an ONS 15454， you are provisioning a circuit on an unprotected SNCP ring. In the exhibit，
which two must you configure？（）
A. revertive
B. circuit size
C. circuit type
D. bidirectional
E. protected drops
F. Switch on PDI-P
A. line timing
B. loop timing
C. internal timing
D. through timing
E. external timing
A. 512
B. 255
C. 1024
D. 4096
You are installing a Cisco ONS 15454 SDH in a service provider site. An E3 cable is being connected to a digital cross-connect system.
What is the maximum distance allowed between the two？（）
A. 225 ft
B. 450 ft
C. 655 ft
D. 900 ft
A. An equal amount of working and protect bandwidth is required.
B. DCC bandwidth is not large enough to handle K1/K2 processing.
C. Switch times would exceed 50 ms for an STM-1 MS-SPRing ring.
D. There is not enough bandwidth in an STM-1 ring to justify MS-SPRing protection.
You are provisioning an E-1 circuit on an ONS 15454 SNCP configuration and XC-VXL-10G card.
How many total ports are used within the Low-Order matrix at the source node？（）
A. 0
B. 1
C. 2
D. 3
E. 5
A. It protects signals against node failures between rings.
B. It protects signals against node failure within a single ring.
C. It allows for traffic to be preempted when a ring switch occurs.
D. Traffic can be dropped and continued at interconnecting nodes.
E. It protects preemptible traffic from being dropped when a ring switch occurs.
A customer would like to create a 1：1 protection group with a DS3Ni-12 card.
Where should it be placed in the chassis？（）
A. only Slots 6 or 12
B. only Slots 3 or 15
C. high or low speed slots
D. directly adjacent to the working card
E. high-speed slots only （5/6 and 12/13）
A customer has 20 E1s to add between far-end nodes in an SNCP ring.
What type of circuit would you recommend？（）
A. LO-PATH circuits
B. HO-PATH circuits
C. 1：1 protection circuits
D. 1：N protection circuits
E. LO-PATH tunnel circuits
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What is the difference between the transmitted power and the sensitivity of the receiver？ （）
Which is a legitimate bandwidth matched pair？（）
If node 2 is accepting line timing from node 1， node 2 will send （） to node 1 as its SSM messge.
For lasers with tightly controlled wavelengths， approximately how far apart are the centers of adjacent wavelengths when 100 GHz spacing is used in a DWDM system？ （）
Given the formula： （Fiber Attenuation * Km） + （Splice Attenuation * # of Splices） + （Connector Attenuation * # of Connectors） + （Optical Fiber or OADM） + Buffer（Fiber aging）） With regard to SONET/SDH optical calculations， what will the given formula provide？（）
Which two can be transported in one AU-4？ （）
In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）
Click the Exhibit button. The exhibit shows a 15454/15216 DWDM system and alarm indications. What are two possible sources of trouble shown in the system？（）
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications？（）
What protection method is used in 4F MS-SPRing networks？（）