H12-931-ENU 무료 덤프문제 온라인 액세스

What are the principles of synchronous Ethernet planning? (multiple choice)

• A.When stopping the SSM protocol, do not configure the clock as a ring in this network. When starting the SSM protocol, the SSM protocol information of all network elements in the network must be set to be consistent
• B.When there is BITS or other high-precision external clock equipment, it is recommended that the network element use the tracking external clock source
• C.When there is no BITS or other high-precision external clock equipment, it is recommended that the network element track the line clock source
• D.The internal clock source is recommended as the lowest level clock source

Commonly used test instruments for WDM system include? () (multiple choice)

• A.Multimeter
• B.Data Service Tester
• C.2M BER tester
• D.Optical power meter
• E.Optical Time Domain Reflectometer
• F.Spectrum Analyzer

Designed as a C-band 80-wave system, add the operation of the C-band odd-numbered wave, the description is correct (multiple choice)

• A.The original business signal-to-noise ratio remains unchanged after operation
• B.The operation process will interrupt the original business
• C.Need to re-adjust the light emission power
• D.There is no change in the optical power of the OTU WDM side

Add a new single-board TOA on the live network 8800 (version R7C02SCP300), the network manager queries the TOA single-board software and cannot automatically match the R7 version of the master. The possible reason is (multiple choice)

• A.TOA's software version is higher than the live network version, so it cannot be automatically matched
• B.The original main control of the 8800 device is a customized package, and there is no software for the TOA board, so the version cannot be automatically matched
• C.8800 equipment automatic matching software function is closed
• D.The 8800 device does not have the function of automatic matching software, and the software package needs to be reloaded

OptiX OSN 1800 is a compact multi-service optical transport platform. What is wrong in the following description? ()

• A.The maximum rate of a single channel is 10 Gbit/s (OTU2)
• B.OptiX OSN 1800II chassis provides a total of 8 service single board slots
• C.The OptiX OSN 1800I chassis provides a total of 4 service single board slots
• D.1588v2 transmission is not supported, and external time signal access is not supported