A. line timing
B. loop timing
C. internal timing
D. through timing
E. external timing
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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.
最新試題
What are three relevant design considerations when using the 15216 EDFA？（）
SDH Code Violations （CVs） totals in the PM tables are actually an accumulation of the number of（）.
What are two important considerations when using 2- or 4-channel 15216 OADMs？（）
In order to avoid misconnections due to a failed node in an MS-SPRing， Alarm Indication Signals （AISs） are sent on every channel normally terminating in that node. What is the name of this process？（）
In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）
What protection method is used in 4F MS-SPRing networks？（）
How is a Thin Film filter fabricated？ （）
If node 2 is accepting line timing from node 1， node 2 will send （） to node 1 as its SSM messge.
How is SNCP and MS-SPRing traffic rerouted during a protection switch when a complete fiber cable cut occurs？（）
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？ （）