单项选择题
What is the correct relative switching priority in an MS-SPRing ring （higher to lower）？ （）
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
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相关考题
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单项选择题
WhatprotocolenablesEthernetoverSONET/SDHencapsulationinteroperabilitybetweentheG-seriesandML-seriesEthernetcards？（）
A. LEX
B. HDLC
C. GFP-F
D. PPP/BCP -
单项选择题
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 -
单项选择题
Whatisthedifferencebetween1+1and1：1protectionswitching？（）
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.
