A customer has 2 E1s to add between far-end nodes in an SNCP ring.
What type of circuit should you recommend？ （）
A. LO-PATH circuits
B. HO-PATH circuits
C. 1：1 protection circuits
D. 1：N protection circuits
E. LO-TUNNEL tunnel circuits
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A. signal fail， signal degrade， manual switch
B. signal degrade， signal fail， manual switch
C. protection lockout， manual switch， path AIS
D. forced switch， manual switch， signal degrade
E. protection lockout， manual switch， forced switch
A. LEX
B. HDLC
C. GFP-F
D. PPP/BCP
You are provisioning an E-1 circuit on an ONS 15454 MS-SPRing configuration and XC-VXL-10G card. Each VC-12 connection must also terminate via the VC-3 matrix.
How many VC-3 ports remain after this circuit is created， assuming no other circuits？（）
A. 92
B. 93
C. 94
D. 95
E. 96
A. 1+1 is based on APS， while 1：1 is based on IPS.
B. 1：1 is used in SNCP switching， while 1+1 is used in MS-SPRing switching.
C. 1+1 sends signals on Working and Protect paths， while 1：1 sends signals only on Working path.
D. 1+1 sends signals on Working path ONLY， while 1：1 sends signals on both Working and Protect paths.
A. 10
B. 32
C. 64
D. 84
E. 96
A. line timing
B. loop timing
C. internal timing
D. through timing
E. external timing
最新試題
What are two major differences between MS-SPRing and SNCP？（）
What are three factors that limit the maximum distance of an amplified optical signal without regeneration？ （）
In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（）
On an ONS 15454 node you can tunnel a（n） （）.
What is the phenomenon called where different wavelengths of light travel at different speeds？（）
What is the difference between the transmitted power and the sensitivity of the receiver？ （）
What are three relevant design considerations when using the 15216 EDFA？（）
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？ （）
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications？（）
SDH Code Violations （CVs） totals in the PM tables are actually an accumulation of the number of（）.